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AP EAMCET · Maths · Indefinite Integration

\(\int 3^{-\log _9 x^2} d x=\)

  1. A \(2 \log |x|+C\)
  2. B \(\log |x|+C\)
  3. C \(-\log |\mathrm{x}|+\mathrm{C}\)
  4. D \(-2 \log |x|+C\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\log |x|+C\)

Step-by-step Solution

Detailed explanation

\(\int 3^{-\log _9 x^2} d x=\int 3^{\log _9\left(\frac{1}{x^2}\right)} d x\) \(=\int\left(\frac{1}{x^2}\right)^{\log _9 3} d x=\int\left(\frac{1}{x^2}\right)^{\frac{1}{2}} d x\) \(=\int \frac{1}{x} d x=\log |x|+C\).