Question

tan( A + B) = p, tan( A -B) = q, then the value of tan 2 A in terms of p and q is?

question in picture​

Answer 1

Step-by-step explanation:

tan 2A = tan {(A + B) + (A - B)} =

tan ( A+B) + tan (A - B)

__________________ =

p + q

______

1 - pq

1 - tan(A + B) tan (A - B)

Answer 2

Step-by-step explanation:

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