d/(dy)(2x(y))

解答

\frac{d}{d y} (2 x (y))

2 x

求解步骤

\frac{d}{d y} (2 x (y))

将

x

视为常数

将常数提出:

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

= 2 x \frac{d y}{d y}

使用常见微分定则:

\frac{d y}{d y} = 1

= 2 x \cdot 1

化简

= 2 x

\frac{d}{d x} (\frac{( - x ^{2} - 5 )}{( x ^{2} - 5 ) ^{2}})

l a pl a ce t r an s f or m - 2 e^{3 t}

25 y^{^{''}} - 25 y^{^{'}} - 6 y = 0

\frac{d}{d x} (\frac{e ^{x} ( x ^{2} - 4 x + 5 )}{( 1 - x ) ^{3}})

\int tan (x) d x