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Find tan 3x if tan x= 1.(a) 1(b) -1(c) 1/\(\sqrt{3}\)(d) \(\sqrt{3}\)This question was addressed to me in my homework.This question is from Trigonometric Functions of Sum and Difference of Two Angles-2 topic in chapter Trigonometric Functions of Mathematics – Class 11

Answer»

Correct OPTION is (b) -1

Easiest EXPLANATION: We know, tan 3x = (3tanx – tan^3x)/(1-3tan^2x)

= (3*1 – 1)/(1-3)

= (2)/(-2) = -1.



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