engineering mathematics MCQ #852

If y = √(x + 1), then dy/dx = ?

engineering mathematics MCQ #852

  1. Question 1

    Q1. If y = √(x + 1), then dy/dx = ?

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

    Answer: 1 / (2√(x + 1))

    Explanation: Rewriting √(x+1) as (x+1)^(1/2) and applying the chain rule gives (1/2)(x+1)^(-1/2).