engineering mathematics MCQ #889

Find derivative of y = 2x + 1 / x

engineering mathematics MCQ #889

  1. Question 1

    Q1. Find derivative of y = 2x + 1 / x

    • A) 2 - 1 / x²
    • B) 2 + 1 / x²
    • C) 2 - 1 / x
    • D) 2 + 1 / x

    Answer: 2 - 1 / x²

    Explanation: Rewrite y = 2x + x^(-1), then dy/dx = 2 - x^(-2) = 2 - 1 / x².