Q. 10

Mark the Correct alternative in the following:

If then

A.tan 3 α = tan 2 β ok

B. tan 2 α = tan β

C. tan 2 α = tan α

D. None of these

Answer :

Given,


As there are 2 option in terms of tan 2A, let us consider tan 2A



[by using the formula for ]



[by substituting the value of tan A as given in the problem]











= tan B


Therefore, tan 2A = tan B


Hence the option B is the correct answer.

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