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TS EAMCET · Maths · Indefinite Integration

\(\int \frac{d x}{9 \cos ^2 2 x+16 \sin ^2 2 x}=\)

  1. A \(\frac{1}{25} \tan ^{-1}\left(\frac{3}{4} \sec ^2 2 x\right)+c\)
  2. B \(\frac{1}{25} \tan ^{-1}\left(\frac{4}{3} \sec ^2 2 x\right)+c\)
  3. C \(\frac{1}{24} \tan ^{-1}\left(\frac{3}{4} \tan 2 x\right)+c\)
  4. D \(\frac{1}{24} \tan ^{-1}\left(\frac{4}{3} \tan 2 x\right)+c\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(\frac{1}{24} \tan ^{-1}\left(\frac{4}{3} \tan 2 x\right)+c\)

Step-by-step Solution

Detailed explanation

\(I=\int \frac{1 d x}{9 \cos ^2 2 x+16 \sin ^2 2 x}\)…