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costheta[[costheta, sintheta], [-sinthet...

`costheta[[costheta, sintheta], [-sintheta, costheta]]+sintheta[[sintheta, -costheta], [costheta, sintheta]]=`

A

`[[0, 0], [0, 0]]`

B

`[[0, 1], [1, 0]]`

C

`[[1, 0], [0, 0]]`

D

`[[1, 0], [0, 1]]`

Text Solution

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The correct Answer is:
D
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