3. If tan (A+ B)=p and tan (A-B), then the value oftan 24 is(a) Pt卫- – InterviewSolution

1.	3. If tan (A+ B)=p and tan (A-B), then the value oftan 24 is(a) Pt卫-1(c)1tp (d)1-p1[PET (MP) 2002)p-9
Answer» tan2A=tan(A+B+A-B)=(tan(A+B)+tan(A-B))/(1-tan(A+B)tan(A-B)=(p+q)/(1-pq)

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