Evaluate \(\begin{vmatrix}-sinθ&-1\\1&sin⁡θ\end{vmatrix}\).

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answerhappygod
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Evaluate \(\begin{vmatrix}-sinθ&-1\\1&sin⁡θ\end{vmatrix}\).

Post by answerhappygod »

a) cos2⁡θ
b) -cos2⁡θ
c) cos⁡2θ
d) cos⁡θ
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