\( \tan^{-1}\frac{1}{2} + \tan^{-1}\frac{1}{3} \) এর মান কত?

A \( \frac{\pi}{4} \)

B \( \frac{\pi}{2} \)

C \( \frac{\pi}{3} \)

D \( \frac{2\pi}{3} \)

Solution

Correct Answer: Option A

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