engineering mathematics MCQ #764

If y = (2x + 1)³, find dy/dx

engineering mathematics MCQ #764

  1. Question 1

    Q1. If y = (2x + 1)³, find dy/dx

    • A) 6(2x + 1)²
    • B) 3(2x + 1)²
    • C) 12(2x + 1)
    • D) 6(2x + 1)

    Answer: 6(2x + 1)²

    Explanation: Using the chain rule, dy/dx = d((2x + 1)³)/dx = 3(2x + 1)² * d(2x + 1)/dx = 3(2x + 1)² * 2 = 6(2x + 1)²