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A=[(cos alpha,-sin alpha),(sin alpha,cos...

`A=[(cos alpha,-sin alpha),(sin alpha,cos alpha)]` and `A+A^(T)=I`, find the value of `alpha`.

A

`(pi)/(6)`

B

`(pi)/(3)`

C

`pi`

D

`(3pi)/(2)`

Text Solution

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The correct Answer is:
B
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