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Questions  >>  CBSE XI  >>  Math  >>  Trigonometric Functions
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Q)

$3(\sin x-\cos x)^4+6(\sin x+\cos x)^2+4(\sin ^6x+\cos ^6x)$=_______

$\begin{array}{1 1}(A)\;11&(B)\;13\\(C)\;12&(D)\;14\end{array} $

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