(2\tan^{-1} \frac12+\tan^{-1}\frac 17=\tan^{-1}x), then the... | Mathematics | SolveeIt | Solveeit

Today, August 19

Question

$2\tan^{-1} \frac12+\tan^{-1}\frac 17=\tan^{-1}x$ , then the value of $x$ is:

A

$\frac {31}{17}$

B

$\frac {17}{31}$

C

$\frac {4}{3}$

D

$\frac {3}{4}$

Answer

$\frac {31}{17}$

Explanation

Solution

The correct option is (A): $\frac {31}{17}$