engineering mathematics MCQ #897

If y = cos(x²), find dy/dx

engineering mathematics MCQ #897

  1. Question 1

    Q1. If y = cos(x²), find dy/dx

    • A) -2x sin(x²)
    • B) 2x sin(x²)
    • C) -sin(x²)
    • D) sin(x²)

    Answer: -2x sin(x²)

    Explanation: Use the chain rule: dy/dx = -sin(x²) * d(x²)/dx = -sin(x²) * 2x.