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TS EAMCET · Maths · Indefinite Integration

\(\frac{d}{d x}\left[a \tan ^{-1} x+b \log \left(\frac{x-1}{x+1}\right)\right]=\frac{1}{x^4-1}\) \(\Rightarrow a-2 b\) is equal to

  1. A 1
  2. B -1
  3. C 0
  4. D 2
Verified Solution

Answer & Solution

Correct Answer

(B) -1

Step-by-step Solution

Detailed explanation

Given, \(\frac{d}{d x}\left[a \tan ^{-1} x+b \log \left(\frac{x-1}{x+1}\right)\right]=\frac{1}{x^4-1}\) On integrating both sides, we get…