1.

If cosec (A + B) = 1 and cosec(A – B) = 2, 0° < (A + B) ≤ 90° and A > B then find the values of :(i) sin A cos B + cos A sin B(ii) tan A-tan B1+tan A tan B

Answer» If cosec (A + B) = 1 and cosec(A – B) = 2, 0° < (A + B) ≤ 90° and A > B then find the values of :

(i) sin A cos B + cos A sin B

(ii) tan A-tan B1+tan A tan B


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