engineering mathematics MCQ #824

If f(x) = √(2x + 1), then f'(x) = ?

engineering mathematics MCQ #824

  1. Question 1

    Q1. If f(x) = √(2x + 1), then f'(x) = ?

    • A) 1 / √(2x + 1)
    • B) 2 / √(2x + 1)
    • C) 1 / (2√(2x + 1))
    • D) 1 / √(2x + 1) * 2

    Answer: 1 / (2√(2x + 1))

    Explanation: Rewrite f(x) as (2x + 1)^(1/2) and apply the chain rule for differentiation.