Question

The sum of the values of x satisfying $\tan(\frac{\pi}{4}+x)+\tan(\frac{\pi}{4}-x)=2$ in the interval $[0,2\pi]$ is:

• A. 6π
• B. 7π
• C. 4π
• D. 3π

Answer 1

Answer: (D)

3π

Answer 2

The correct option is (D): 3π