Let →a,→b,→c be three mutually perpendicular vectors of the same – InterviewSolution

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1.	Let →a,→b,→c be three mutually perpendicular vectors of the same magnitude and equally inclined at an angle θ, with the vector →a+→b+→c. Then 36cos22θ is equal to
Answer» Let $\to a, \to b, \to c$ be three mutually perpendicular vectors of the same magnitude and equally inclined at an angle $θ$ , with the vector $\to a + \to b + \to c .$ Then $36 {cos}^{2} 2 θ$ is equal to

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