engineering mathematics MCQ #1526

∫x / √(x² + 1) dx

engineering mathematics MCQ #1526

  1. Question 1

    Q1. ∫x / √(x² + 1) dx

    • A) √(x² + 1) + C
    • B) √(x² + 1) / 2 + C
    • C) (1/2)√(x² + 1) + C
    • D) (1/2)x√(x² + 1) + C

    Answer: √(x² + 1) + C

    Explanation: Using substitution u = x² + 1, du = 2x dx, hence (1/2)∫1 / √u du = √u + C.