A= [ ccc & - & 0 & & 0 0 & 0 & 1 ], then A^ -1 is - Vidyadip

MCQ

$A=\left[\begin{array}{ccc}\cos \alpha & -\sin \alpha & 0 \\ \sin \alpha & \cos \alpha & 0 \\ 0 & 0 & 1\end{array}\right]$, then $A^{-1}$ is

A
A
B
$-A$
✓
$\operatorname{adj}(A)$
D
$-\operatorname{adj}(A)$

✓

Answer

Correct option: C.

$\operatorname{adj}(A)$

adj (A)

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