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if tan3A+tan2A=1 then find the value of A. please help me....

if tan3A+tan2A=1 then find the value of A. please help me....

Grade:10

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
5 years ago
Dear Student,

Use tan3A = 3tanA – tan3A/(1-3tan2A) and tan2A = 2tanA/(1-tan2A).
Replace tanA by x and solve the cubic equation and get the solutions for tanA and finally get the value of A from there.

Thanks.

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