engineering mathematics MCQ #661

Differentiate y = 1 / (1 + x²)

engineering mathematics MCQ #661

  1. Question 1

    Q1. Differentiate y = 1 / (1 + x²)

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

    Answer: -2x / (1 + x²)²

    Explanation: Using chain rule and quotient rule or recognizing the derivative of 1/(1+x²)