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If cos x – 3sin x = 3\sqrt33​​ sin x, then the value of tan x is:
Question

If cos x – 3sin x = 3\sqrt3​ sin x, then the value of tan x is:

A.

336\frac{3-\sqrt3}{6}​​

B.

333-\sqrt3​​

C.

3\sqrt3​​

D.

3+33+\sqrt3​​

Correct option is A

Given:

cosx3sinx=3sinx\cos x - 3 \sin x = \sqrt{3} \sin x

Formula Used:
tan x =sinxcosx \frac{\sin x}{\cos x}​​

Solution:

cosx=(3+3)sinx=>sinxcosx=13+3=>tanx=13+3\cos x = (\sqrt{3} + 3) \sin x \Rightarrow \frac{\sin x}{\cos x} = \frac{1}{\sqrt{3} + 3} \Rightarrow \tan x = \frac{1}{\sqrt{3} + 3}​​

tanx=13+33333=33(3+3)(33)=3339=336=336\tan x = \frac{1}{\sqrt{3} + 3} \cdot \frac{\sqrt{3} - 3}{\sqrt{3} - 3} = \frac{\sqrt{3} - 3}{(\sqrt{3} + 3)(\sqrt{3} - 3)} = \frac{\sqrt{3} - 3}{3 - 9} = \frac{\sqrt{3} - 3}{-6} = \frac{3 - \sqrt{3}}{6}

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