If A = [cosαsinα−sinαcosα], find α satisfying 0<α<π2 when A+A – InterviewSolution

1.	If A = [cosαsinα−sinαcosα], find α satisfying 0<α<π2 when A+AT=√2I2; where AT is transpose of A.
Answer» If A = $[\begin{matrix} cos α & sin α - sin α & cos α \end{matrix}]$ , find $α$ satisfying $0 < α < \frac{π}{2}$ when $A + A^{T} = \sqrt{2} I_{2}$ ; where $A^{T}$ is transpose of A.

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