KcetMatrices And DeterminantsKCET 2018MCQ+1 / -02018If $A=\left[\begin{array}{cc}\cos \alpha & \sin \alpha \\ -\sin \alpha & \cos \alpha\end{array}\right]$, then $A A^{\prime}$ is equal toA$A$Bzero matrixC$A^{\prime}$D1Check AnswerClear SelectionReveal AnswerShow Explanation
