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https://www.ravikantsir.in/if-%cf%80-2-x-%cf%80-then-%e2%88%9a1-sin-x1-sin-x-%e2%88%9a1-sin-x1-sin-x-k-sec-x-then-k/ 2026-05-24T10:46:10+00:00 monthly 0.2 https://www.ravikantsir.in/if-%cf%80-2-x-%cf%80-then-%e2%88%9a1-sin-x1-sin-x-k-sec-x-then-k/ 2026-05-24T10:47:42+00:00 monthly 0.2 https://www.ravikantsir.in/the-value-of-cos1-cos-2-cos-3-cos-179-is-_________/ 2026-05-24T10:49:51+00:00 monthly 0.2 https://www.ravikantsir.in/if-%cf%80-x-2%cf%80-then-%e2%88%9a1-cos-x1-cos-x-%e2%88%9a1-cos-x1-cos-x-k-cosec-x-then-k/ 2026-05-24T10:51:26+00:00 monthly 0.2 https://www.ravikantsir.in/the-minimum-value-of-9-tan2-%ce%b8-4-cot2-%ce%b8-is-________/ 2026-05-24T10:52:41+00:00 monthly 0.2 https://www.ravikantsir.in/if-sec-x-m-and-tan-x-n-then-1-mm-n-1-m-n-is-equal-to/ 2026-05-24T10:53:54+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos2-x-sin-x-1-0-and-0-x-2%cf%80-then-x/ 2026-05-24T10:55:30+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-x-2t-1-t2-and-x-lies-in-the-second-quadrant-then-cos-x/ 2026-05-24T10:56:54+00:00 monthly 0.2 https://www.ravikantsir.in/if-sec-x-t-1-4t-then-the-value-of-sec-x-tan-x-is/ 2026-05-24T10:58:13+00:00 monthly 0.2 https://www.ravikantsir.in/if-tan-x-cot-x-4-then-tan4-x-cot4-x-_________/ 2026-05-24T10:59:25+00:00 monthly 0.2 https://www.ravikantsir.in/if-3%cf%80-4-l-x-%cf%80-then-%e2%88%9acosec2-x-2cot-x-is-equal-to/ 2026-05-24T11:01:27+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-6-graph-of-trigonometric-functions-exercise-6-1-solutions-step-by-step-guide/ 2026-05-26T14:26:31+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-function-fx-2-sin-x-0-%e2%89%a4-x-%e2%89%a4-%cf%80/ 2026-05-25T04:39:32+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-function-gx-3-sin-x-%cf%80-4-0-%e2%89%a4-x-%e2%89%a4-5%cf%80-4/ 2026-05-25T04:41:02+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-function-hx-2-sin-3x-0-%e2%89%a4-x-%e2%89%a4-2%cf%80-3/ 2026-05-25T04:42:35+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-function-%cf%86x-2-sin-2x-%cf%80-3-0-%e2%89%a4-x-%e2%89%a4-7%cf%80-5/ 2026-05-25T04:43:52+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-function-%cf%88x-4-sin-3x-%cf%80-4-0-%e2%89%a4-x-%e2%89%a4-2%cf%80/ 2026-05-25T04:45:04+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-function-%ce%b8x-sinx-2-%cf%80-4-0-%e2%89%a4-x-%e2%89%a44%cf%80/ 2026-05-25T04:46:19+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-function-ux-sin%c2%b2x-0-%e2%89%a4-x-%e2%89%a4-2%cf%80-vx-sin-x-0-%e2%89%a4-x-%e2%89%a4-2%cf%80/ 2026-05-25T04:47:53+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-function-fx-2-sin-%cf%80x-0-%e2%89%a4-x-%e2%89%a4-2/ 2026-05-25T04:49:06+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-pairs-of-functions-on-the-same-axes-fx-sin-x-gx-sin-x-%cf%80-4/ 2026-05-25T04:50:43+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-pairs-of-functions-on-the-same-axes-f-x-sin-x-gx-sin-2x/ 2026-05-25T04:52:09+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-pairs-of-functions-on-the-same-axes-fx-sin-2x-gx-2-sin-x/ 2026-05-25T04:53:26+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-pairs-of-functions-on-the-same-axes-fx-sin-x-2-gx-sin-x/ 2026-05-25T04:55:02+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-6-graph-of-trigonometric-functions-exercise-6-2-solutions-step-by-step-guide/ 2026-05-26T14:27:48+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-trigonometric-function-fx-cos-x-%cf%80-4/ 2026-05-25T04:59:29+00:00 monthly 0.2 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https://www.ravikantsir.in/sketch-the-graphs-of-the-following-curves-on-the-same-scale-and-the-same-axes-y-cos-x-and-y-cosx-%cf%80-4/ 2026-05-25T05:09:34+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-curves-on-the-same-scale-and-the-same-axes-y-cos-2x-and-y-cos-x-%cf%80-4/ 2026-05-25T05:10:42+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-curves-on-the-same-scale-and-the-same-axes-y-cos-x-and-y-cos-x-2/ 2026-05-25T05:12:01+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-curves-on-the-same-scale-and-the-same-axes-y-cos%c2%b2x-and-y-cos-x/ 2026-05-25T05:13:16+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-6-graph-of-trigonometric-functions-exercise-6-3-solutions-step-by-step-guide/ 2026-05-26T14:29:16+00:00 monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-functions-fx-2-cose%d1%81-%cf%80x/ 2026-05-25T05:16:52+00:00 monthly 0.2 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monthly 0.2 https://www.ravikantsir.in/sketch-the-graphs-of-the-following-functions-fx-tan-2x/ 2026-05-25T05:32:41+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-7-value-of-trigonometric-functions-at-sum-or-difference-of-angles-exercise-7-1-solutions-step-by-step-guide/ 2026-05-26T14:18:44+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-a-4-5-and-cos-b-5-13-where-0-less-than-a-b-less-than-%cf%80-2-find-the-values-of-the-following-i-sin-a-b-ii-cos-a-b-iii-sin-a-b-iv-cos-a-b/ 2026-05-25T13:20:43+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-a-12-13-and-sin-b-4-5-where-%cf%80-2-less-than-a-less-than-%cf%80-and-0-less-than-%d0%b2-less-than-%cf%80-2-find-the-following-i-sin-a-b-ii-cos-a-b/ 2026-05-25T13:22:22+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-a-24-25-and-cos-b-3-5-where-%cf%80-less-than-a-less-than-3%cf%80-2-and-3%cf%80-2-less-than-%d0%b2-less-than-2%cf%80-find-the-following-i-sin-a-b-ii-cos-a-b/ 2026-05-25T13:25:25+00:00 monthly 0.2 https://www.ravikantsir.in/if-tan-a-3-4-cos-b-9-41-where-%cf%80-less-than-a-less-than-3%cf%80-2-and-0-less-than-%d0%b2-less-than-%cf%80-2-find-tanab/ 2026-05-25T13:27:14+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-a-1-2-cos-b-12-13-where-%cf%80-2-less-than-a-less-than-%cf%80-and-3%cf%80-2-less-than-%d0%b2-less-than-2%cf%80-find-tana-b/ 2026-05-25T13:28:55+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-a-1-2-cos-b-%e2%88%9a3-2-where-%cf%80-2-less-than-a-less-than-%cf%80-and-0-less-than-%d0%b2-less-than-%cf%80-2-find-the-following-i-tan-a-b-ii-tan-a-b/ 2026-05-25T13:30:47+00:00 monthly 0.2 https://www.ravikantsir.in/evaluate-the-following-sin-78-cos-18-cos-78-sin-18/ 2026-05-25T13:32:19+00:00 monthly 0.2 https://www.ravikantsir.in/evaluate-the-following-cos-47-cos-13-sin-47-sin-13/ 2026-05-25T13:33:42+00:00 monthly 0.2 https://www.ravikantsir.in/evaluate-the-following-sin-36-cos-9-cos-36-sin-9/ 2026-05-25T13:34:46+00:00 monthly 0.2 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2026-05-25T13:57:34+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sina-b-sina-b-cosa-b-cosa-b-tan-a/ 2026-05-25T13:58:51+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sina-b-cos-a-cos-b-sinb-c-cos-b-cos-c-sinc-a-cos-c-cos-a-0/ 2026-05-25T14:00:05+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sina-b-sin-a-sin-b-sinb-c-sin-b-sin-c-sinc-a-sin-c-sin-a-0/ 2026-05-25T14:01:17+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin%c2%b2b-sin%c2%b2a-sin%c2%b2a-b-2-sin-a-cos-b-sina-b/ 2026-05-25T14:05:38+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos%c2%b2a-cos%c2%b2b-2-cos-a-cos-b-cosa-b-sin%c2%b2a-b/ 2026-05-25T14:07:26+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-tana-b-cota-b-tan%c2%b2a-tan%c2%b2b-1-tan%c2%b2a-tan%c2%b2b/ 2026-05-25T14:10:01+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-tan-8x-tan-6x-tan-2x-tan-8x-tan-6x-tan-2x/ 2026-05-25T14:12:10+00:00 monthly 0.2 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2026-05-26T13:10:40+00:00 monthly 0.2 https://www.ravikantsir.in/if-cot-%ce%b1-%ce%b2-0-then-sin-%ce%b1-2%ce%b2-is-equal-to-a-sin-%ce%b1-b-cos-2%ce%b2-c-cos-%ce%b1-d-sin-2%ce%b1/ 2026-05-26T13:11:58+00:00 monthly 0.2 https://www.ravikantsir.in/cos-10-sin-10-cos-10-sin-10-is-equal-to-a-tan-55-b-cot-55-c-tan-35-d/ 2026-05-26T13:13:19+00:00 monthly 0.2 https://www.ravikantsir.in/the-value-of-cos%c2%b2%cf%80-6-x-sin%c2%b2%cf%80-6-x-is-a-1-2-cos-2x-b-0-c-1-2-cos-2x-d-1-2/ 2026-05-26T13:15:03+00:00 monthly 0.2 https://www.ravikantsir.in/if-tan-%ce%b8%e2%82%81-tan-%ce%b8%e2%82%82-k-then-cos%ce%b8%e2%82%81-%ce%b8%e2%82%82-cos%ce%b8%e2%82%81-%ce%b8%e2%82%82-a-1-k-1-k-b-1/ 2026-05-26T13:16:43+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-%cf%80-cos-x-cos-%cf%80-sin-x-then-sin-2x-a-%c2%b13-4-b-%c2%b14-3-c-%c2%b11-3-d-none-of-these/ 2026-05-26T13:18:14+00:00 monthly 0.2 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https://www.ravikantsir.in/if-tana-b-p-and-tana-b-q-then-write-the-value-of-tan-2b/ 2026-05-26T14:06:27+00:00 monthly 0.2 https://www.ravikantsir.in/if-cosx-y-cosx-y-m-n-then-write-the-value-of-tan-x-tan-y/ 2026-05-26T14:07:44+00:00 monthly 0.2 https://www.ravikantsir.in/if-a-b-cos2%cf%80-3-c-cos4%cf%80-3-then-write-the-value-of-ab-bc-ca/ 2026-05-26T14:09:07+00:00 monthly 0.2 https://www.ravikantsir.in/if-a-b-c-then-write-the-value-of-tan-a-tan-b-tan-c/ 2026-05-26T14:10:37+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-%ce%b1-sin-%ce%b2-a-and-cos-%ce%b1-cos-%ce%b2-b-then-write-the-value-of-cos-%ce%b1-%ce%b2/ 2026-05-26T14:11:56+00:00 monthly 0.2 https://www.ravikantsir.in/if-tan-%ce%b1-1-1-2-x-and-tan-%ce%b2-1-1-2x-1-then-write-the-value-of-%ce%b1-%ce%b2-lying-in-the-interval-0-%cf%80-2/ 2026-05-26T14:13:18+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-8-trigonometric-formulae-exercise-8-1-solutions-step-by-step-guide/ 2026-05-28T08:41:16+00:00 monthly 0.2 https://www.ravikantsir.in/express-each-of-the-following-as-the-sum-or-difference-of-sines-and-cosines-i-2-sin-3x-cos-x-ii-2-cos-3x-sin-2x-iii-2-sin-4x-sin-3x-iv-2-cos-7-x-cos-3x/ 2026-05-27T04:43:04+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-2-sin-5%cf%80-12-sin-%cf%80-12-1-2/ 2026-05-27T04:43:03+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-2-cos-5%cf%80-12-cos-%cf%80-12-1-2/ 2026-05-27T04:46:06+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-2-sin-5%cf%80-12-cos-%cf%80-12-%e2%88%9a3-2-2/ 2026-05-27T04:48:09+00:00 monthly 0.2 https://www.ravikantsir.in/show-that-sin-50-cos-85-1-%e2%88%92-%e2%88%9a2-sin-35-2%e2%88%9a2/ 2026-05-27T04:49:43+00:00 monthly 0.2 https://www.ravikantsir.in/show-that-sin-25-cos-115-1-2sin-140-1/ 2026-05-27T04:51:02+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-4-cos-x-cos-%cf%80-3-x-cos%cf%80-3-x-cos-3x/ 2026-05-27T04:55:01+00:00 monthly 0.2 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https://www.ravikantsir.in/show-that-sin-b-c-cos-a-d-sin-c-a-cos-b-d-sin-a-b-cos-c-d-0/ 2026-05-27T05:22:54+00:00 monthly 0.2 https://www.ravikantsir.in/if-%ce%b1-%ce%b2-%cf%80-2-show-that-the-maximum-value-of-cos-%ce%b1-cos-%ce%b2-is-1-2/ 2026-05-27T05:24:19+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-tan-x-tan%cf%80-3-%e2%88%92-x-tan%cf%80-3-x-tan-3x/ 2026-05-27T05:26:47+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-8-trigonometric-formulae-multiple-choice-questions-mcqs-solutions-step-by-step-guide/ 2026-05-28T08:44:22+00:00 monthly 0.2 https://www.ravikantsir.in/cos-40-cos-80-cos-160-cos-240-a-0-b-1-c-1-2-d-1-2/ 2026-05-27T05:34:22+00:00 monthly 0.2 https://www.ravikantsir.in/sin-163-cos-347-sin-73-sin-167-a-0-b-1-2-c-1-d-none-of-these/ 2026-05-27T05:38:00+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-2%ce%b8-sin-2%cf%95-1-2-and-cos-2%ce%b8-cos-2%cf%95-3-2-then-cos%c2%b2%ce%b8-%cf%95-a-3-8-b-5-8-c-3-4-d-5-4/ 2026-05-27T05:41:15+00:00 monthly 0.2 https://www.ravikantsir.in/the-value-of-cos-52-cos-68-cos-172-is-a-0-b-1-c-2-d-3-2/ 2026-05-27T05:42:49+00:00 monthly 0.2 https://www.ravikantsir.in/the-value-of-sin-78-sin-66-sin-42-sin-6-is-a-1-2-b-1-2-c-1-d-none-of-these/ 2026-05-27T05:44:31+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-%ce%b1-sin-%ce%b2-a-and-cos-%ce%b1-cos-%ce%b2-b-then-tan%ce%b1-%ce%b2-2-a-a-b-b-b-a-c-%e2%88%9aa%c2%b2-b%c2%b2-d-none-of-these/ 2026-05-27T05:47:21+00:00 monthly 0.2 https://www.ravikantsir.in/cos-35-cos-85-cos-155-a-0-b-1-%e2%88%9a3-c-1-%e2%88%9a2-d-cos-275/ 2026-05-27T05:49:41+00:00 monthly 0.2 https://www.ravikantsir.in/the-value-of-sin-50-sin-70-sin-10-is-equal-to-a-1-b-0-c-1-2-d-2/ 2026-05-27T05:52:25+00:00 monthly 0.2 https://www.ravikantsir.in/sin-47-sin-61-sin-11-sin-25-is-equal-to-a-sin-36-b-cos-36-c-sin-7-d-cos-7/ 2026-05-27T05:54:27+00:00 monthly 0.2 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https://www.ravikantsir.in/if-sin-2a-%ce%bb-sin-2b-then-write-the-value-of-%ce%bb-1-%ce%bb-1/ 2026-05-27T06:31:57+00:00 monthly 0.2 https://www.ravikantsir.in/write-the-value-of-sin-a-sin-3a-cos-a-cos-3a/ 2026-05-27T06:33:25+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-a-b-sin-c-d-cos-a-b-sin-c-d-then-write-the-value-tan-a-tan-b-tan-c/ 2026-05-27T06:35:02+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-8-trigonometric-formulae-exercise-8-2-solutions-step-by-step-guide/ 2026-05-28T08:42:53+00:00 monthly 0.2 https://www.ravikantsir.in/express-the-following-as-the-product-of-sines-and-cosines-sin-12x-sin-4x/ 2026-05-27T13:07:15+00:00 monthly 0.2 https://www.ravikantsir.in/express-the-following-as-the-product-of-sines-and-cosines-sin-5x-sin-x/ 2026-05-27T13:08:35+00:00 monthly 0.2 https://www.ravikantsir.in/express-the-following-as-the-product-of-sines-and-cosines-cos-12x-cos-8x/ 2026-05-27T13:09:51+00:00 monthly 0.2 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https://www.ravikantsir.in/prove-that-sin-50-sin-70-sin-10-0/ 2026-05-27T13:24:36+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-80-cos-40-cos-20-0/ 2026-05-27T13:25:54+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-20-cos-100-cos-140-0/ 2026-05-27T13:27:37+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-5%cf%80-18-cos-4%cf%80-9-%e2%88%9a3-sin-%cf%80-9/ 2026-05-27T13:30:03+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-%cf%80-12-sin-%cf%80-12-1-%e2%88%9a2/ 2026-05-27T13:31:22+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-80-cos70-cos50/ 2026-05-27T13:32:40+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-51-cos-81-cos-21/ 2026-05-27T13:34:08+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos3%cf%80-4-x-cos-3%cf%80-4-x-%e2%88%9a2-sin-x/ 2026-05-27T13:35:29+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos%cf%80-4-x-cos-%cf%80-4-x-%e2%88%9a2-cos-x/ 2026-05-27T13:36:36+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-65-cos-65-%e2%88%9a2-cos-20/ 2026-05-27T13:37:50+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-47-cos-77-cos-17/ 2026-05-27T13:39:13+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-3a-cos-5a-cos-7a-cos-15a-4-cos-4a-cos-5a-cos-6a/ 2026-05-27T13:40:33+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-a-cos-3a-cos-5a-cos-7a-4-cos-a-cos-2a-cos-4a/ 2026-05-27T13:41:54+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-a-sin-2a-sin-4a-sin-5a-4-cos-a-2-cos-3a-2-sin-3a/ 2026-05-27T13:43:12+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-3a-sin-2a-sin-a-4-sin-a-cos-a-2-cos-3a-2/ 2026-05-27T13:44:26+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-20-cos-100-cos-100-cos-140-cos-140-cos-200-3-4/ 2026-05-27T13:46:12+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-x-2-sin-7x-2-sin-3x-2-sin-11x-2-sin-2x-sin-5x/ 2026-05-27T13:47:53+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-x-cos-x-2-cos-3x-cos-9x-2-sin-7x-sin-8x/ 2026-05-27T13:49:10+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-a-sin-3a-cos-a-cos-3a-cot-a/ 2026-05-27T13:54:10+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-9a-sin-7a-cos-7a-cos-9a-cot-8a/ 2026-05-27T13:55:30+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-a-sin-b-cos-a-cos-b-tan-a-b-2/ 2026-05-27T13:56:44+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-a-sin-b-sin-a-sin-b-tanab-2-cota-b-2/ 2026-05-27T13:58:00+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-a-cos-b-cos-b-cos-a-cota-b-2-cota-b-2/ 2026-05-27T14:05:53+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-a-sin-3a-sin-5a-cos-a-cos-3a-cos-5a-tan-3a/ 2026-05-27T14:07:19+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-3a-2-cos-5a-cos-7a-cos-a-2-cos-3a-cos-5a-cos-5a-cos-3a/ 2026-05-27T14:08:47+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-4a-cos-3a-cos-2a-in-4a-sin-3a-sin-2a-cot-3a/ 2026-05-27T14:10:47+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-3a-sin-5a-sin-7a-sin-9a-cos-3a-cos-5a-cos-7a-cos-9a-tan-6a/ 2026-05-27T14:12:51+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-5a-sin-7a-sin-8a-sin-4a-cos-4a-cos-7a-cos-5a-cos-8a-cot-6a/ 2026-05-27T14:14:21+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-5a-cos-2a-sin-6a-cos-a-sin-a-sin-2a-cos-2a-cos-3a-tan-a/ 2026-05-27T14:15:38+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-11a-sin-a-sin-7-a-sin-3a-cos-11a-sin-a-cos-7-a-sin-3a-tan-8a/ 2026-05-27T14:17:10+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-3a-cos-4a-sin-a-cos-2a-sin-4a-sin-a-cos-6a-cos-a-tan-2a/ 2026-05-27T14:18:30+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-a-sin-2a-sin-3a-sin-6a-sin-a-cos-2a-sin-3a-cos-6a-tan-5a/ 2026-05-27T14:24:06+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-a-2-sin-3a-sin-5a-sin-3a-2-sin-5a-sin-7a-sin-3a-sin-5a/ 2026-05-27T14:25:25+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-%ce%b8-%cf%86-2-sin-%ce%b8-sin-%ce%b8-%cf%86-cos-%ce%b8%cf%86-2-cos-%ce%b8-cos-%ce%b8-%cf%86-tan-%ce%b8/ 2026-05-27T14:26:46+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-%ce%b1-sin-%ce%b2-sin-%ce%b3-sin-%ce%b1-%ce%b2-%ce%b3-4-sin-%ce%b1-%ce%b2-2-sin-%ce%b2-%ce%b3-2-sin-%ce%b3-%ce%b1-2/ 2026-05-27T14:28:14+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-a-b-c-cos-a-b-c-cos-a-b-c-cos-a-b-c-4-cos-a-cos-b-cos-c/ 2026-05-27T14:29:28+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-a-cos-b-1-2-and-sin-a-sin-b-1-4-prove-that-tan-a-b-2-1-2/ 2026-05-27T14:31:01+00:00 monthly 0.2 https://www.ravikantsir.in/if-cosec-a-sec-a-cosec-b-sec-b-prove-that-tan-a-tan-b-cot-a-b-2/ 2026-05-27T14:32:19+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-2a-%ce%bb-sin-2b-prove-that-tan-a-b-tan-a-b-%ce%bb-1-%ce%bb-1/ 2026-05-27T14:33:43+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-abc-cos-a-b-c-cos-a-b-c-cos-a-b-c-sin-abc-sin-abc-sin-a-bc-sin-ab-c-cot-c/ 2026-05-27T14:35:30+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-b-c-cos-a-d-sin-c-a-cos-b-d-sin-a-b-cos-c-d-0/ 2026-05-27T14:36:46+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-a-b-cos-a-b-cos-c-d-cos-c-d-0-prove-that-tan-a-tan-b-tan-c-tan-d-1/ 2026-05-27T14:38:17+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-%ce%b1-%ce%b2-sin-%ce%b3-%ce%b4-cos-%ce%b1-%ce%b2-sin-%ce%b3-%ce%b4-prove-that-cot-%ce%b1-cot-%ce%b2-cot-%ce%b3-cot-%ce%b4/ 2026-05-27T14:39:52+00:00 monthly 0.2 https://www.ravikantsir.in/if-y-sin-%cf%86-x-sin-2%ce%b8-%cf%86-prove-that-x-y-cot-%ce%b8-%cf%86-y-x-cot-%ce%b8/ 2026-05-27T14:41:51+00:00 monthly 0.2 https://www.ravikantsir.in/if-cosa-b-sin-c-d-cosa-b-sin-c-d-prove-that-tan-a-tan-b-tan-c-tan-d-0/ 2026-05-27T14:43:36+00:00 monthly 0.2 https://www.ravikantsir.in/if-x-cos-%ce%b8-y-cos-%ce%b8-2%cf%80-3-cos-%ce%b8-4%cf%80-3-prove-that-xy-yz-zx-0/ 2026-05-27T14:45:04+00:00 monthly 0.2 https://www.ravikantsir.in/if-m-sin-%ce%b8-n-sin-%ce%b8-2%ce%b1-prove-that-tan-%ce%b8-%ce%b1-cot-%ce%b1-m-n-m-n/ 2026-05-27T14:46:27+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-9-value-of-trigonometric-functions-at-multiples-and-submultiples-of-an-angle-exercise-9-1-solutions-step-by-step-guide/ 2026-05-31T11:37:45+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-%e2%88%9a1-cos-2x-1-cos-2x-tan-x/ 2026-05-28T06:28:02+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-sin-2x-1-cos-2x-cot-x/ 2026-05-28T06:29:57+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-sin-2x-1-cos-2x-tan-x/ 2026-05-28T06:33:27+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-%e2%88%9a2%e2%88%9a22cos-4x-2cos-x-0-x-%cf%80-4/ 2026-05-28T06:37:25+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-1-cos-2x-sin-2x-1-cos-2x-sin-2x-tan-x/ 2026-05-28T06:38:57+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-sin-x-sin-2x-1-cos-x-cos-2x-tan-x/ 2026-05-28T06:40:24+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos-2x-1-sin-2x-tan-%cf%80-4-x/ 2026-05-28T06:41:57+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos-x-1-sin-x-tan-%cf%80-4-x-2/ 2026-05-28T06:43:20+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos2-%cf%80-8-cos2-3%cf%80-8-cos2-5%cf%80-8-cos2-7%cf%80-8-2/ 2026-05-28T06:44:43+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-sin2-%cf%80-8-sin2-3%cf%80-8-sin2-5%cf%80-8-sin2-7%cf%80-8-2/ 2026-05-28T06:46:17+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos-%ce%b1-cos-%ce%b22-sin-%ce%b1-sin-%ce%b22-4-cos2-%ce%b1-%ce%b2-2/ 2026-05-28T06:47:55+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-sin%c2%b2%cf%80-8-x-2-sin%c2%b2%cf%80-8-x-2-1-%e2%88%9a2-sin-x/ 2026-05-28T06:49:29+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-1-cos%c2%b2-2x-2-cos%e2%81%b4-x-sin%e2%81%b4-x/ 2026-05-28T06:50:48+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos3-2x-3-cos-2x-4-cos6-x-sin6-x/ 2026-05-28T06:52:15+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-sin-3x-sin-x-sin-x-cos-3x-cos-x-cos-x-0/ 2026-05-28T06:54:19+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos%c2%b2%cf%80-4-x-sin%c2%b2%cf%80-4-x-sin-2x/ 2026-05-28T06:55:36+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos-4x-1-8-cos2-x-8-cos4-x/ 2026-05-28T06:57:05+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-sin-4x-4-sin-x-cos%c2%b3-x-4-cos-x-sin%c2%b3-x/ 2026-05-28T06:58:16+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identity-3-sin-x-cos-x4-6-sin-x-cos-x2-4-sin6-x-cos6-x-13/ 2026-05-28T06:59:34+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-2-sin%e2%81%b6-x-cos%e2%81%b6-x-3-sin%e2%81%b4-x-cos%e2%81%b4-x-1-0/ 2026-05-28T07:00:51+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos6-x-sin6-x-cos-2x-1-1-4-sin2-2x/ 2026-05-28T07:02:06+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-tan-%cf%80-4-x-tan-%cf%80-4-x-2-sec-2x/ 2026-05-28T07:03:41+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cot2-x-tan2-x-4-cot-2x-cosec-2x/ 2026-05-28T07:05:00+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-cos-4x-cos-4%ce%b1-8-cosx-cos-%ce%b1-cos-x-cos-%ce%b1-cos-x-sin-%ce%b1-cos-x-sin-%ce%b1/ 2026-05-28T07:06:37+00:00 monthly 0.2 https://www.ravikantsir.in/prove-the-following-identities-sin-3x-sin-2x-sin-x-4-sin-x-cos-x-2-cos-3x-2/ 2026-05-28T07:07:55+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-tan-82-1-2-%e2%88%9a3-%e2%88%9a2%e2%88%9a2-1-%e2%88%9a2-%e2%88%9a3-%e2%88%9a4-%e2%88%9a6/ 2026-05-28T07:09:10+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cot-%cf%80-8-%e2%88%9a2-1/ 2026-05-28T07:10:38+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-x-3-5-and-x-lies-in-the-iiird-quadrant-find-the-values-of-cos-x-2-sin-x-2-and-sin-2x/ 2026-05-28T07:12:04+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-x-3-5-and-x-lies-in-iind-quadrant-find-the-values-of-sin-2x-and-sin-x-2/ 2026-05-28T07:13:53+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-x-%e2%88%9a5-3-and-x-lies-in-iind-quadrant-find-the-values-of-cos-x-2-sin-x-2-and-tan-x-2/ 2026-05-28T07:15:31+00:00 monthly 0.2 https://www.ravikantsir.in/if-0-%e2%89%a4-x-%e2%89%a4-%cf%80-and-x-lies-in-the-iind-quadrant-such-that-sin-x-1-4-find-the-values-of-cos-x-2-sin-x-2-and-tan-x-2/ 2026-05-28T07:17:10+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-x-4-5-and-x-is-acute-find-tan-2x/ 2026-05-28T07:18:43+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-x-4-5-and-0-x-%cf%80-2-find-the-value-of-sin-4x/ 2026-05-28T07:24:40+00:00 monthly 0.2 https://www.ravikantsir.in/if-tan-x-b-a-then-find-the-value-of-%e2%88%9aa-b-a-b-%e2%88%9aa-b-a-b/ 2026-05-28T07:27:03+00:00 monthly 0.2 https://www.ravikantsir.in/if-tan-a-1-7-and-tan-b-1-3-show-that-cos-2a-sin-4b/ 2026-05-28T07:28:31+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-7-cos-14-cos-28-cos-56-sin-68-16-cos-83/ 2026-05-28T07:29:54+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos2%cf%80-15-cos4%cf%80-15-cos8%cf%80-15-cos16%cf%80-15-1-16/ 2026-05-28T07:31:27+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos%cf%80-5-cos2%cf%80-5-cos4%cf%80-5-cos8%cf%80-5-1-16/ 2026-05-28T07:32:43+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos%cf%80-65-cos2%cf%80-65-cos4%cf%80-65-cos8%cf%80-65-cos16%cf%80-65-cos32%cf%80-65-1-64/ 2026-05-28T07:34:00+00:00 monthly 0.2 https://www.ravikantsir.in/if-2-tan-%ce%b1-3-tan-%ce%b2-prove-that-tan-%ce%b1-%ce%b2-sin-2%ce%b2-5-cos-2%ce%b2/ 2026-05-28T07:35:29+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-%ce%b1-sin-%ce%b2-a-and-cos-%ce%b1-cos-%ce%b2-b-prove-that-sin-%ce%b1-%ce%b2-2ab-a%c2%b2-b%c2%b2/ 2026-05-28T07:36:53+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-%ce%b1-sin-%ce%b2-a-and-cos-%ce%b1-cos-%ce%b2-b-prove-that-cos-%ce%b1-%ce%b2-a%c2%b2-b%c2%b2-2-2/ 2026-05-28T07:38:28+00:00 monthly 0.2 https://www.ravikantsir.in/if-2-tan%ce%b1-2-tan%ce%b2-2-prove-that-cos-%ce%b1-3-5-cos-%ce%b2-5-3-cos-%ce%b2/ 2026-05-28T07:39:53+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-x-cos-%ce%b1-cos-%ce%b2-1-cos-%ce%b1-cos-%ce%b2-prove-that-tanx-2-%c2%b1-tan%ce%b1-2-tan%ce%b2-2/ 2026-05-28T07:41:08+00:00 monthly 0.2 https://www.ravikantsir.in/if-secx-%ce%b1-secx-%ce%b1-2-sec-x-prove-that-cos-x-%c2%b1-%e2%88%9a2-cos%ce%b1-2/ 2026-05-28T07:43:03+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-%ce%b1-cos-%ce%b2-1-3-and-sin-%ce%b1-sin-%ce%b2-1-4-prove-that-cos%ce%b1-%ce%b2-2-%c2%b1-5-24/ 2026-05-28T07:44:29+00:00 monthly 0.2 https://www.ravikantsir.in/if-sin-%ce%b1-4-5-and-cos-%ce%b2-5-13-prove-that-cos%ce%b1-%ce%b2-2-8-%e2%88%9a65/ 2026-05-28T07:46:02+00:00 monthly 0.2 https://www.ravikantsir.in/if-a-cos-2x-b-sin-2x-c-has-%ce%b1-and-%ce%b2-as-its-roots-then-prove-that-i-tan-%ce%b1-tan-%ce%b2-2b-a-c-ii-tan-%ce%b1-tan-%ce%b2-c-a-c-a-iii-tan%ce%b1-%ce%b2-b/ 2026-05-28T07:47:33+00:00 monthly 0.2 https://www.ravikantsir.in/if-cos-%ce%b1-cos-%ce%b2-0-sin-%ce%b1-sin-%ce%b2-then-prove-that-cos-2%ce%b1-cos-2%ce%b2-2-cos%ce%b1-%ce%b2/ 2026-05-28T07:49:14+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-9-value-of-trigonometric-functions-at-multiples-and-submultiples-of-an-angle-exercise-9-2-solutions-step-by-step-guide/ 2026-05-31T11:39:12+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-5x-5-sin-x-20-sin%c2%b3-x-16-sin%e2%81%b5-x/ 2026-05-28T07:58:06+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-4-cos%c2%b3-10-sin%c2%b3-20-3-cos-10-sin-20/ 2026-05-28T07:59:44+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos%c2%b3-x-sin-3x-sin%c2%b3-x-cos-3x-3-4-sin-4x/ 2026-05-28T08:01:15+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-tan-x-tan-x-%cf%80-3-tan-x-tan-x-%cf%80-3-tan-x-%cf%80-3-tan-x-%cf%80-3-3/ 2026-05-28T08:02:49+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-tan-x-tan-%cf%80-3-x-tan-%cf%80-3-x-3-tan-3x/ 2026-05-28T08:04:07+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cot-x-cot-%cf%80-3-x-cot-%cf%80-3-x-3-cot-3x/ 2026-05-28T08:06:06+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cot-x-cot-%cf%80-3-x-cot-2%cf%80-3-x-3-cot-3x/ 2026-05-28T08:08:02+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-5x-5-cos%e2%81%b4-x-sin-x-10-cos%c2%b2-x-sin%c2%b3-x-sin%e2%81%b5-x/ 2026-05-28T08:09:33+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin%c2%b3-x-sin%c2%b3-2%cf%80-3-x-sin%c2%b3-4%cf%80-3-x-3-4-sin-3x/ 2026-05-28T08:11:05+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin-x-sin-%cf%80-3-x-sin-%cf%80-3-x-%e2%89%a4-1-4-for-all-values-of-x/ 2026-05-28T08:12:33+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-x-cos-%cf%80-3-x-cos-%cf%80-3-x-%e2%89%a4-1-4-for-all-values-of-x/ 2026-05-28T08:14:46+00:00 monthly 0.2 https://www.ravikantsir.in/class-11th-maths-rd-sharma-chapter-9-value-of-trigonometric-functions-at-multiples-and-submultiples-of-an-angle-exercise-9-3-solutions-step-by-step-guide/ 2026-05-31T11:41:04+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin%c2%b2-2%cf%80-5-sin%c2%b2-%cf%80-3-%e2%88%9a5-1-8/ 2026-05-28T08:19:09+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin%c2%b2-24-sin%c2%b2-6-%e2%88%9a5-1-8/ 2026-05-28T08:20:46+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-sin%c2%b2-42-cos%c2%b2-78-%e2%88%9a5-1-8/ 2026-05-28T08:22:00+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-78-cos-42-cos-36-1-8/ 2026-05-28T08:23:23+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-%cf%80-15-cos-2%cf%80-15-cos-4%cf%80-15-cos-7%cf%80-15-1-16/ 2026-05-28T08:24:51+00:00 monthly 0.2 https://www.ravikantsir.in/prove-that-cos-6-cos-42-cos-66-cos-78-1-16/ 2026-05-28T08:26:15+00:00 monthly 0.2 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