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Question: Answered & Verified by Expert
The value of $2 \sin ^{-1}\left(\frac{1}{2}\right)+\cot ^{-1}\left(\frac{1}{\sqrt{3}}\right)$ is
MathematicsInverse Trigonometric FunctionsMHT CETMHT CET 2022 (05 Aug Shift 2)
Options:
  • A $\frac{\pi}{4}$
  • B $\frac{\pi}{3}$
  • C $\frac{\pi}{6}$
  • D $\frac{2 \pi}{3}$
Solution:
2602 Upvotes Verified Answer
The correct answer is: $\frac{2 \pi}{3}$
$2 \sin ^{-1}\left(\frac{1}{2}\right)+\cos ^{-1}\left(\frac{1}{\sqrt{3}}\right)=2 \times \frac{\pi}{6}+\frac{\pi}{3}=\frac{2 \pi}{3}$

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