Question

If tan (A+B) =p and tan (A-B) =q then prove that tan 2A = p+q/ 1- pq

Answer 1

We have tan (A + B) =p and tan (A – B) = q
tan2A = tan [(A + B) + (A-B)]

Answer 2

Answer:

$tan2a = \frac{p + q}{1 - pq}$

Step-by-step explanation:

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