(\partial)/(\partial y)(-(y^2)/((x-y)^2))

Lösung

\frac{\partial}{\partial y} (- \frac{y ^{2}}{( x - y ) ^{2}})

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

Schritte zur Lösung

\frac{\partial}{\partial y} (- \frac{y ^{2}}{( x - y ) ^{2}})

Behandle

x

als Konstante

Entferne die Konstante:

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

= - \frac{\partial}{\partial y} (\frac{y ^{2}}{( x - y ) ^{2}})

Wende die Quotientenregel an:

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

= - \frac{\frac{\partial}{\partial y} ( y ^{2} ) ( x - y ) ^{2} - \frac{\partial}{\partial y} ( ( x - y ) ^{2} ) y ^{2}}{( ( x - y ) ^{2} ) ^{2}}

\frac{\partial}{\partial y} (y^{2}) = 2 y

\frac{\partial}{\partial y} ((x - y)^{2}) = - 2 (x - y)

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

Vereinfache

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

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

\int 7 d x

\frac{d}{d x} (4 x^{l n (x)})

x \to - \infty lim (\frac{- 3 x ^{3} - 4 x ^{2} + 2}{5 x ^{3} + 4 x ^{2} - 2 x})

\frac{d}{d x} (e^{- x} (a cos (x) + b sin (x)))

x \to - \infty lim (\frac{7 x ^{4} - 14 x ^{2}}{6 x ^{5} + 3})