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Popular >

derivative of sqrt(x)-2/x

Solution

\frac{d}{d x} (x - \frac{2}{x})

Solution

\frac{x ^{\frac{3}{2}} + 4}{2 x ^{\frac{3}{2}} x}

Solution steps

\frac{d}{d x} (x - \frac{2}{x})

Apply the Sum/Difference Rule:

(f \pm g)^{'} = f^{'} \pm g^{'}

= \frac{d}{d x} (x) - \frac{d}{d x} (\frac{2}{x})

\frac{d}{d x} (x) = \frac{1}{2 x}

\frac{d}{d x} (\frac{2}{x}) = - \frac{2}{x ^{2}}

= \frac{1}{2 x} - (- \frac{2}{x ^{2}})

Simplify

\frac{1}{2 x} - (- \frac{2}{x ^{2}}) : \frac{x ^{\frac{3}{2}} + 4}{2 x ^{\frac{3}{2}} x}

= \frac{x ^{\frac{3}{2}} + 4}{2 x ^{\frac{3}{2}} x}

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Frequently Asked Questions (FAQ)

What is the derivative of sqrt(x)-2/x ?
The derivative of sqrt(x)-2/x is (x^{3/2}+4)/(2x^{3/2)sqrt(x)}
What is the first derivative of sqrt(x)-2/x ?
The first derivative of sqrt(x)-2/x is (x^{3/2}+4)/(2x^{3/2)sqrt(x)}