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If A=[[a, b],[ c ,d]] , then a d j\ A is...

If `A=[[a, b],[ c ,d]]` , then `a d j\ A` is `[[-d,-b],[-c, a]]` (b) `[[d,-b],[-c ,a]]` (c) `[[d, b],[ c, a]]` (d) `[[d, c],[ b ,a]]`

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To find the adjoint of the matrix \( A = \begin{bmatrix} a & b \\ c & d \end{bmatrix} \), we will follow the standard procedure for calculating the adjoint of a 2x2 matrix. ### Step-by-Step Solution: 1. **Identify the elements of the matrix**: The matrix \( A \) is given as: \[ A = \begin{bmatrix} a & b \\ c & d \end{bmatrix} ...
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