a) sin y (cos y-cos x)
b) sin x (cos y-cos x)
c) sin x (cos x-cos y)
d) sin y (cos 2y-cos x)
Evaluate \(\begin{vmatrix}sin \,y&0&sin \,y\\cos \,y&1&cos \,x\\sin \,y&1&sin \,y \end{vmatrix}\)
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answerhappygod
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Evaluate \(\begin{vmatrix}sin \,y&0&sin \,y\\cos \,y&1&cos \,x\\sin \,y&1&sin \,y \end{vmatrix}\)
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