engineering mathematics MCQ #865

If y = (2x - 1)³, then dy/dx is

engineering mathematics MCQ #865

  1. Question 1

    Q1. If y = (2x - 1)³, then dy/dx is

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

    Answer: 6(2x - 1)²

    Explanation: Using chain rule, if y = u³ and u = 2x - 1, then dy/dx = 3u² * du/dx = 3(2x-1)² * 2 = 6(2x-1)².