Solve
tan 3 theta+tan theta=2tan2 theta
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9
the answer of this question is 0.
sounabghosh:
i have asked for the general formula not the answer
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3
tan 3a can be written as tan (2a + a)
Tan 2a = 2 Tan a / 1-Tan²a
Tan 2a = 2 Tan a / 1-Tan²a
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