\( \tan^{- 1}{x} + \tan^{- 1}{\left ( \frac{1 - x}{1 + x} \right )} = ? \)

A \( \frac{π}{2} \)

B \( \frac{π}{3} \)

C \( \frac{π}{4} \)

D Both a and c

Solution

Correct Answer: Option C

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