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Popular >

derivative of f(x)=(2x-1)/(2x+1)

Solution

derivative of

f (x) = \frac{2 x - 1}{2 x + 1}

Solution

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

Solution steps

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

Apply the Quotient Rule:

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

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

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

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

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

Expand

2 (2 x + 1) - 2 (2 x - 1) : 4

= \frac{4}{( 2 x + 1 ) ^{2}}

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Frequently Asked Questions (FAQ)

What is the derivative of f(x)=(2x-1)/(2x+1) ?
The derivative of f(x)=(2x-1)/(2x+1) is 4/((2x+1)^2)
What is the first derivative of f(x)=(2x-1)/(2x+1) ?
The first derivative of f(x)=(2x-1)/(2x+1) is 4/((2x+1)^2)