1.

\[\frac{{{\sin }^{2}}A-{{\sin }^{2}}B}{\sin A\cos A-\sin B\cos B}=\] [MP PET 1993]

A. \[\tan (A-B)\]
B. \[\tan (A+B)\]
C. \[\cot (A-B)\]
D. \[\cot (A+B)\]
Answer» C. \[\cot (A-B)\]


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