engineering mathematics MCQ #732

If y = sin(x), then d²y/dx² = ?

engineering mathematics MCQ #732

  1. Question 1

    Q1. If y = sin(x), then d²y/dx² = ?

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

    Answer: -sin(x)

    Explanation: First derivative of sin(x) is cos(x). Second derivative is derivative of cos(x), which is -sin(x).