Q. $tan (4 tan^{- 1} \frac{1}{3}) =$

1748 242 Inverse Trigonometric Functions Report Error

A

$\frac{24}{7}$

35%

B

$\frac{7}{24}$

20%

C

$\frac{25}{24}$

21%

D

$\frac{24}{25}$

24%

Solution:

Apply $2 tan^{- 1} x$ formula 2 times