derivative of (3x+2/(3x-2))

解

\frac{d}{d x} (\frac{3 x + 2}{3 x - 2})

- \frac{12}{( 3 x - 2 ) ^{2}}

解答ステップ

\frac{d}{d x} (\frac{3 x + 2}{3 x - 2})

商の法則を適用:

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

= \frac{\frac{d}{d x} ( 3 x + 2 ) ( 3 x - 2 ) - \frac{d}{d x} ( 3 x - 2 ) ( 3 x + 2 )}{( 3 x - 2 ) ^{2}}

\frac{d}{d x} (3 x + 2) = 3

\frac{d}{d x} (3 x - 2) = 3

= \frac{3 ( 3 x - 2 ) - 3 ( 3 x + 2 )}{( 3 x - 2 ) ^{2}}

簡素化

\frac{3 ( 3 x - 2 ) - 3 ( 3 x + 2 )}{( 3 x - 2 ) ^{2}} : - \frac{12}{( 3 x - 2 ) ^{2}}

= - \frac{12}{( 3 x - 2 ) ^{2}}