Single Variable Calculus

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Differentiating a Square Root Function

SVCALC-EQDLLZ

Find the derivative of:

$$f\left( x \right) =\sqrt { x-1 } $$

...using the limit approach.

A

$\cfrac{1}{2}\sqrt{x-1}$

B

$\cfrac{1}{\sqrt{x-1}}$

C

$\cfrac{1}{2\sqrt{x-1}}$

D

$2 \sqrt{x-1}$