engineering mathematics MCQ #689

If y = √x, then dy/dx = ?

engineering mathematics MCQ #689

  1. Question 1

    Q1. If y = √x, then dy/dx = ?

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

    Answer: 1 / (2√x)

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