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Post-UTME Mathematics 2019 Objective — Question 31

Question 31 of 50 from the Post-UTME Screening (Post-UTME) Mathematics 2019 Objective paper, with the correct answer and a full explanation.

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Integrate (1-x)/x³ with respect to x

  • A. x - x²/x⁴ + k
  • B. 4/x⁴ - 3/x³ + k
  • C. 1/x - 1/2x² + kCorrect
  • D. 1/x - 1/x² + k

Explanation

∫(1/x³ - x/x³)dx = ∫(x⁻³-x⁻²)dx = -1/(2x²) + 1/x + k = 1/x - 1/(2x²) + k.

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