When the determinant vmatrix ^2x& ^2x& 4x ^2x& ^2x& ^2x 4x& ^2x& ^2x vmatrix is…

MATHEMATICS · Single correct · CBSE · Mathematics · Determinants · Determinants

Problem

When the determinant ∣cos⁡2xsin⁡2xcos⁡4xsin⁡2xcos⁡2xcos⁡2xcos⁡4xcos⁡2xcos⁡2x∣\begin{vmatrix}\cos^2x&\sin^2x&\cos4x\\\sin^2x&\cos^2x&\cos^2x\\\cos4x&\cos^2x&\cos^2x\end{vmatrix} is expanded in powers of sin⁡x\sin x, the constant term in the expression is (1) 11 (2) 00 (3) −1-1 (4) 22

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