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If Tan (A+B)=1/3 and Tan(A-B)=2/5,then prove thatA.Tan2A=11/13 B.Tan2B=-1/17
1. 1 answer
2. 573 views
If TanA=k.TanB prove that (k+1)sin(A-B)=(k-1)sin(A+B).
1. 10 answers
2. 5,567 views