The value of (4\tan^{-1}(\frac{1}{5})-\frac{\pi}{4}=) | Mathematics | SolveeIt | Solveeit

Today, August 23

Question

The value of $4\tan^{-1}(\frac{1}{5})-\frac{\pi}{4}=$

A

$\tan^{-1}(\frac{1}{139})$

B

$\tan^{-1}(\frac{1}{239})$

C

tan-1(239)

D

tan-1(139)

Answer

$\tan^{-1}(\frac{1}{239})$

Explanation

Solution

The correct option is (B) : $\tan^{-1}(\frac{1}{239})$ .