engineering mathematics MCQ #840

If y = 1 / x², then dy/dx =

engineering mathematics MCQ #840

  1. Question 1

    Q1. If y = 1 / x², then dy/dx =

    • A) -2 / x³
    • B) 2 / x³
    • C) -1 / x³
    • D) 1 / x³

    Answer: -2 / x³

    Explanation: Using the power rule, y = x^(-2), so dy/dx = -2x^(-3) = -2 / x³.