Solve the following.

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written 6.8 years ago by

teamques10 ★ 70k

modified 3.7 years ago by

rjran106 • 20

If A = $\begin{bmatrix} \pi & \pi / 4 \\ 0 & \pi / 2 \\ \end{bmatrix}$ , Find $cosA$

engineering mathematics

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