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Himpunan Penyelesaian Dari 3 Tan^2 x – 1 = 0

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JAWABAN: B

PEMBAHASAN:

3 tan2 x – 1 = 0

3 tan2 x = 1

tan2 x = 1/3

tan x = √3/3 dan tan x = - √3/3

tan x = √3/3, maka

tan x = tan 30°

x = 30° + k.180°

x = 30°

x = 210°

tan x = -√3/3, maka

tan x = tan 150°

x = 150° + k.180°

x = 150°

x = 330°

 

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