Class 11th Maths – RD Sharma Chapter 6 : Graph of Trigonometric Functions – Exercise 6.2 Solutions

1. Sketch the graphs of the following trigonometric functions:

     (i) f(x) = cos (x − π/4) Watch Solution

    (ii) g(x) = cos (x + π/4) Watch Solution

   (iii) h(x) = cos² 2x Watch Solution

   (iv) ϕ(x) = 2 cos (x − π/6) Watch Solution

   (v) ψ(x) = cos 3x Watch Solution

  (vi) u(x) = cos² x/2 Watch Solution

   (vii) f(x) = cos πx Watch Solution

   (viii) g(x) = cos 2πx Watch Solution

2. Sketch the graphs of the following curves on the same scale and the same axes:

   (i) y = cos x and y = cos (x − π/4) Watch Solution

  (ii) y = cos 2x and y = cos 2(x − π/4)  Watch Solution

  (iii) y = cos x and y = cos x/2 Watch Solution

  (iv) y = cos² x and y = cos x Watch Solution