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AP EAMCET · Maths · Inverse Trigonometric Functions

\(4 \tan ^{-1} \frac{1}{5}-\tan ^{-1} \frac{1}{70}+\tan ^{-1} \frac{1}{99}=\)

  1. A \(\frac{\pi}{12}\)
  2. B \(\frac{\pi}{6}\)
  3. C \(\frac{\pi}{4}\)
  4. D \(\frac{\pi}{3}\)
Verified Solution

Answer & Solution

Correct Answer

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

Step-by-step Solution

Detailed explanation

\(4 \tan ^{-1}\left(\frac{1}{5}\right)-\tan ^{-1}\left(\frac{1}{70}\right)+\tan ^{-1}\left(\frac{1}{99}\right)\)…