engineering mathematics MCQ #3665

The value of C in 1 / (x - 1)(x + 1)² = A/(x - 1) + B/(x + 1) + C/(x + 1)² is

engineering mathematics MCQ #3665

  1. Question 1

    Q1. The value of C in 1 / (x - 1)(x + 1)² = A/(x - 1) + B/(x + 1) + C/(x + 1)² is

    • A) 1/4
    • B) -1/4
    • C) -1/2
    • D) 1

    Answer: -1/2

    Explanation: Substitute x = -1 in the cleared equation: 1 = C(-2), so C = -1/2.