Inverse Trigonometric Functions Question 148

Question: If $ {{\sin }^{-1}}\frac{1}{2}={{\tan }^{-1}}x, $ then x =

Options:

A) $ \sqrt{3} $

B) $ \frac{1}{\sqrt{3}} $

C) $ \frac{1}{\sqrt{2}} $

D) None of these

Show Answer

Answer:

Correct Answer: B

Solution:

Given that $ {{\sin }^{-1}}\frac{1}{2}={{\tan }^{-1}}x $

$ \Rightarrow {{\tan }^{-1}}x=\frac{\pi }{6} $

$ \Rightarrow x=\tan 30^{o}=\frac{1}{\sqrt{3}} $ .