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If A= [[cos x, sin x],[-sin x, cos x]] a...

If `A= [[cos x, sin x],[-sin x, cos x]]` and `A(adj A)=k[[1,0],[0,1]]` then the value of `k` is

A

sin x,cos x

B

1

C

2

D

3

Text Solution

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The correct Answer is:
B
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