engineering mathematics MCQ #711

If y = 2x³ + 5x² - 7x + 3, then dy/dx at x = 1 is

engineering mathematics MCQ #711

  1. Question 1

    Q1. If y = 2x³ + 5x² - 7x + 3, then dy/dx at x = 1 is

    • A) 4
    • B) 6 + 10 - 7
    • C) 6
    • D) 13

    Answer: 6 + 10 - 7

    Explanation: Using power rule for differentiation, dy/dx = d(2x³ + 5x² - 7x + 3)/dx = 6x² + 10x - 7, at x = 1, dy/dx = 6 + 10 - 7