What is the derivative of x/(sqrt(x-7)) ?

The derivative of x/(sqrt(x-7)) is (x-14)/(2(x-7)sqrt(x-7))

What is the first derivative of x/(sqrt(x-7)) ?

The first derivative of x/(sqrt(x-7)) is (x-14)/(2(x-7)sqrt(x-7))

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\frac{d}{d x} (\frac{x}{x - 7})

\frac{x - 14}{2 ( x - 7 ) x - 7}

Solution steps

\frac{d}{d x} (\frac{x}{x - 7})

Apply the Quotient Rule:

(\frac{f}{g})^{'} = \frac{f ^{'} \cdot g - g ^{'} \cdot f}{g ^{2}}

= \frac{\frac{d x}{d x} x - 7 - \frac{d}{d x} ( x - 7 ) x}{( x - 7 ) ^{2}}

\frac{d x}{d x} = 1

\frac{d}{d x} (x - 7) = \frac{1}{2 x - 7}

= \frac{1 \cdot x - 7 - \frac{1}{2 x - 7} x}{( x - 7 ) ^{2}}

Simplify

\frac{1 \cdot x - 7 - \frac{1}{2 x - 7} x}{( x - 7 ) ^{2}} : \frac{x - 14}{2 ( x - 7 ) x - 7}

= \frac{x - 14}{2 ( x - 7 ) x - 7}

What is the derivative of x/(sqrt(x-7)) ?
The derivative of x/(sqrt(x-7)) is (x-14)/(2(x-7)sqrt(x-7))
What is the first derivative of x/(sqrt(x-7)) ?
The first derivative of x/(sqrt(x-7)) is (x-14)/(2(x-7)sqrt(x-7))