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Integrate \(\frac{1 + x}{x^{3}} \mathrm d x\)

Integrate \(\frac{1 + x}{x^{3}} \mathrm d x\)
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  • A \(2x^{2} - \frac{1}{x} + k\)
  • B \(-\frac{1}{2x^{2}} - \frac{1}{x} + k\)
  • C \(-\frac{x^{2}}{2} - \frac{1}{x} + k\)
  • D \(x^{2} - \frac{1}{x} + k\)
Correct Answer: Option B
Explanation:
\(\int \frac{1 + x}{x^{3}} \mathrm d x\)
= \(\int (\frac{1}{x^{3}} + \frac{x}{x^{3}}) \mathrm d x\)
= \(\int (x^{-3} + x^{-2}) \mathrm d x\)
= \(\frac{-1}{2x^{2}} - \frac{1}{x} + k\)

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