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MHT CET · Maths · Indefinite Integration

\(\int \mathrm{e}^x\left(\frac{x+5}{(x+6)^2}\right) \mathrm{d} x\) is

  1. A \(\frac{\mathrm{e}^x}{(x+6)^2}+\mathrm{c}\), where c is the constant of integration.
  2. B \(\frac{e^x}{x+5}+c,\) where \(c\) is the constant of integration.
  3. C \(\frac{\mathrm{e}^x}{(x+5)^2}+\mathrm{c}\), where c is the constant of integration.
  4. D \(\frac{\mathrm{e}^x}{x+6}+\mathrm{c},\) where c is the constant of integration.
Verified Solution

Answer & Solution

Correct Answer

(D) \(\frac{\mathrm{e}^x}{x+6}+\mathrm{c},\) where c is the constant of integration.

Step-by-step Solution

Detailed explanation

\(\int \mathrm{e}^x\left(\frac{x+5}{(x+6)^2}\right) \mathrm{d} x = \int \mathrm{e}^x\left(\frac{(x+6)-1}{(x+6)^2}\right) \mathrm{d} x\) \(= \int \mathrm{e}^x\left(\frac{1}{x+6} - \frac{1}{(x+6)^2}\right) \mathrm{d} x\)