engineering mathematics MCQ #996

If f(x) = x³ + 2x² - x + 1, then f'(1) = ?

engineering mathematics MCQ #996

  1. Question 1

    Q1. If f(x) = x³ + 2x² - x + 1, then f'(1) = ?

    • A) 4
    • B) 6
    • C) 8
    • D) 10

    Answer: 6

    Explanation: Find f'(x) = 3x² + 4x - 1, then substitute x = 1 to get f'(1) = 3 + 4 - 1 = 6.