engineering mathematics MCQ #943

If f(x) = sin(2x), what is f'(x)?

engineering mathematics MCQ #943

  1. Question 1

    Q1. If f(x) = sin(2x), what is f'(x)?

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

    Answer: 2cos(2x)

    Explanation: Using the chain rule for differentiation: if f(x) = sin(u), u = 2x, then f'(x) = 2cos(2x).