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If A=[[sectheta, tantheta, 0], [tantheta...

If `A=[[sectheta, tantheta, 0], [tantheta, sectheta, 0], [0, 0, 1]]`, then `A^(-1)=`

A

`[[sectheta, -tantheta, 0], [tantheta, -sectheta, 0], [0, 0, 1]]`

B

`[[sectheta, -tantheta, 0], [-tantheta, sectheta, 0], [0, 0, 1]]`

C

`[[-sectheta, -tantheta, 0], [tantheta, sectheta, 0], [0, 0, 1]]`

D

`[[sectheta, tantheta, 0], [tantheta, sectheta, 0], [0, 0, 1]]`

Text Solution

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The correct Answer is:
B
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