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The inverse of the matrix [[costheta, -s...

The inverse of the matrix `[[costheta, -sintheta, 0], [sintheta, costheta, 0], [0, 0, 1]]` is

A

`-[[costheta, sintheta, 0], [-sintheta, costheta, 0], [0, 0, 1]]`

B

`[[costheta, sintheta, 0], [-sintheta, costheta, 0], [0, 0, 1]]`

C

`-[[costheta, -sintheta, 0], [sintheta, costheta, 0], [0, 0, 1]]`

D

`[[costheta, -sintheta, 0], [sintheta, costheta, 0], [0, 0, 1]]`

Text Solution

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The correct Answer is:
B
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  14. If A=[[-2, 0, 0], [-2, -1, 3]], B=[[0, 1], [2, 3], [1, -1]], then

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  15. If A=[[1, 2, 3], [1, -2, -3]], B=[[1, -1], [1, 2], [1, -1]], then

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