engineering mathematics MCQ #744

If y = (x + 1)³, then d²y/dx² = ?

engineering mathematics MCQ #744

  1. Question 1

    Q1. If y = (x + 1)³, then d²y/dx² = ?

    • A) 6(x + 1)
    • B) 3(x + 1)²
    • C) 6(x + 1)²
    • D) 3(x + 1)

    Answer: 6(x + 1)

    Explanation: First derivative is 3(x+1)², and the second derivative is 3*2(x+1) = 6(x+1).