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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

`2n pi pm(2pi)/(2) , n pi I`

B

`2 n pi pm (pi)/(3) , n in I`

C

`2 n pi pm (2pi)/(3) , n in I`

D

`2n pi pm (4pi)/(3) , n in I`

Text Solution

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The correct Answer is:
B
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