April 2026

For two matrices A and B, A = [[2, 1, 3], [4, 1, 0]], B = [[1, -1], [0, 2], [5, 0]] verify that (AB)^T = B^TA^T

Verify (AB)^T = B^T A^T Verify that (AB)T = BTAT Given: \[ A = \begin{bmatrix} 2 & 1 & 3 \\ 4 & 1 & 0 \end{bmatrix}, \quad B = \begin{bmatrix} 1 & -1 \\ 0 & 2 \\ 5 & 0 \end{bmatrix} \] To Verify: \[ (AB)^T = B^T A^T \] Step 1: Find […]

For two matrices A and B, A = [[2, 1, 3], [4, 1, 0]], B = [[1, -1], [0, 2], [5, 0]] verify that (AB)^T = B^TA^T Read More »

Let A = [[1, -1, 0], [2, 1, 3], [1, 2, 1]] and B = [[1, 2, 3], [2, 1, 3], [0, 1, 1]]. Find A^T, B^T and verify that (i) (A + B)^T = A^T + B^T (ii) (AB)^T = B^TA^T (iii) (2A)^T = 2A^T

Verify Matrix Transpose Properties Verify Matrix Transpose Properties Given: \[ A = \begin{bmatrix} 1 & -1 & 0 \\ 2 & 1 & 3 \\ 1 & 2 & 1 \end{bmatrix}, \quad B = \begin{bmatrix} 1 & 2 & 3 \\ 2 & 1 & 3 \\ 0 & 1 & 1 \end{bmatrix} \] Step

Let A = [[1, -1, 0], [2, 1, 3], [1, 2, 1]] and B = [[1, 2, 3], [2, 1, 3], [0, 1, 1]]. Find A^T, B^T and verify that (i) (A + B)^T = A^T + B^T (ii) (AB)^T = B^TA^T (iii) (2A)^T = 2A^T Read More »

A trust invested some money in two type of bonds. The first boys pays 10% interest and second bond pays 12% interest. The trust received ₹2800 as interest. However, if trust had interchanged money in bonds, they would have got ₹100 less as interest. Using matrix method, find the amount invested by the trust.

Bond Investment using Matrix Question A trust invested money in two bonds: 10% and 12%. Total interest = ₹2800 If investments are interchanged, interest becomes ₹2700. Find the investment using matrix method. Solution Step 1: Let \[ x = \text{amount at 10%}, \quad y = \text{amount at 12%} \] Step 2: Form Equations \[ 0.10x

A trust invested some money in two type of bonds. The first boys pays 10% interest and second bond pays 12% interest. The trust received ₹2800 as interest. However, if trust had interchanged money in bonds, they would have got ₹100 less as interest. Using matrix method, find the amount invested by the trust. Read More »