Q. The value of $tan 2 0^{\circ} + 2 tan 5 0^{\circ} - tan 7 0^{\circ}$ is :

1897 245 Trigonometric Functions Report Error

A

1

11%

B

0

67%

C

$tan 5 0^{\circ}$

22%

D

none of these

0%

Solution:

Correct answer is (b) 0