engineering mathematics MCQ #795

If y = sin(2x), then d²y/dx² = ?

engineering mathematics MCQ #795

  1. Question 1

    Q1. If y = sin(2x), then d²y/dx² = ?

    • A) -4 sin(2x)
    • B) -2 sin(2x)
    • C) 4 sin(2x)
    • D) 2 cos(2x)

    Answer: -4 sin(2x)

    Explanation: First derivative, dy/dx = 2 cos(2x). Second derivative, d²y/dx² = -4 sin(2x).