engineering mathematics MCQ #827

If f(x) = 3sin(x), then f'(x) =

engineering mathematics MCQ #827

  1. Question 1

    Q1. If f(x) = 3sin(x), then f'(x) =

    • A) 3cos(x)
    • B) -3sin(x)
    • C) 3sin(x)
    • D) -3cos(x)

    Answer: 3cos(x)

    Explanation: The derivative of sin(x) is cos(x), so using the constant multiple rule, the derivative of 3sin(x) is 3cos(x).