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Q3. (a) Prove that Sin(A+B)Sin(A-B)=sin A-sin B = cos B-cos A (b) Find x from the equation: cosec(90 + A+xcos A cot(90 +4)=sin(90 +

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Q3. (a) Prove that Sin(A+B)Sin(A-B)=sin A-sin B = cos B-cos A (b) Find x from the equation: cosec(90 + A+xcos A cot(90 +4)=sin(90 + 4)

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