Answer Happy • Evaluate \(\begin{vmatrix}cos⁡θ&-cos⁡θ&1\\sin^2⁡θ&cos^2⁡θ&1\\sin⁡θ&-sin⁡θ&1\end{vmatrix}\).

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Posted: Wed Jul 13, 2022 8:07 pm

by answerhappygod

a) sin⁡θ+cos2⁡θ
b) -sin⁡θ-cos2⁡⁡θ
c) -sin⁡θ+cos2⁡⁡θ
d) sin⁡θ-cos2⁡⁡θ