SSC CHSL 2022 PYQ — Question 68

SSC CHSL - 31 May 2022 - Shift 3 • Quantitative Aptitude • Q68

If sinx-3cosx=3\sqrt{3}cosx, then the value of cot x is:

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Correct answer: D

Explanation

The correct answer is option 4 i.e. 3−36\frac{3-\sqrt{3}}{6}

Given:

 sinx - 3cosx=3\sqrt{3}cosx

Formula Used:

cotx=coxsinxcotx = {cox \over sinx}

Explanation:

According to the given question,

 sinx - 3cosx=3\sqrt{3}cosx

⇒  sinx = 3cosx + 3\sqrt{3}cosx

⇒ sinx = (3 + 3\sqrt{3})cosx

⇒ cotx = 1(3+3){1 \over (3 + \sqrt{3})}

⇒ cotx = (3−3)6{(3 - \sqrt{3})} \over 6

Hence the required answer is (3−3)6{(3 - \sqrt{3})} \over 6 .