engineering mathematics MCQ #839

If f(x) = sin²(x), then f'(x) =

engineering mathematics MCQ #839

  1. Question 1

    Q1. If f(x) = sin²(x), then f'(x) =

    • A) 2sin(x)cos(x)
    • B) sin(x)cos(x)
    • C) 2sin(x)
    • D) sin(2x)

    Answer: 2sin(x)cos(x)

    Explanation: Using the chain rule, f'(x) = 2sin(x) * d(sin(x))/dx = 2sin(x)cos(x).