alleryThe derivative of $\sqrt{x}$ with respect to $x$ is:
A$\dfrac{1}{2\sqrt{x}}$
B$\dfrac{1}{\sqrt{x}}$
C$2\sqrt{x}$
D$\dfrac{1}{2x}$
Answer & Solution
Correct answer: A. $\dfrac{1}{2\sqrt{x}}$
We have d/dx(x^{1/2}) = ½ x^{−1/2}.
So d/dx(x^{1/2}) = 1/(2√x).
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