What is the derivative of (7x)/(x+1) ?

The derivative of (7x)/(x+1) is 7/((x+1)^2)

What is the first derivative of (7x)/(x+1) ?

The first derivative of (7x)/(x+1) is 7/((x+1)^2)

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derivative of

\frac{7 x}{x + 1}

\frac{7}{( x + 1 ) ^{2}}

Solution steps

\frac{d}{d x} (\frac{7 x}{x + 1})

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

= 7 \frac{d}{d x} (\frac{x}{x + 1})

Apply the Quotient Rule:

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

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

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

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

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

Simplify

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

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

\int cos (x) cos (7 x) d x

\frac{d}{d x} (\frac{- 2 x ^{2} + 2}{( x ^{2} + 1 ) ^{2}})

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

\frac{d}{d x} (- 8 ln (x))

What is the derivative of (7x)/(x+1) ?
The derivative of (7x)/(x+1) is 7/((x+1)^2)
What is the first derivative of (7x)/(x+1) ?
The first derivative of (7x)/(x+1) is 7/((x+1)^2)