(\partial)/(\partial x)(3/8 xy)

解答

\frac{\partial}{\partial x} (\frac{3}{8} x y)

\frac{3 y}{8}

求解步骤

\frac{\partial}{\partial x} (\frac{3}{8} x y)

将

y

视为常数

将常数提出:

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

= \frac{3}{8} y \frac{\partial}{\partial x} (x)

使用常见微分定则:

\frac{\partial}{\partial x} (x) = 1

= \frac{3}{8} y \cdot 1

化简

\frac{3}{8} y \cdot 1 : \frac{3 y}{8}

= \frac{3 y}{8}

\frac{d}{d x} (a cos (b x + c) + d)

a re a 6 x^{2} - 2 x, x^{3} - 6 x + 3

f (x) = 3 x + 1

\frac{\partial}{\partial x} (2 x^{2} + 3 y^{2} - 4 x - 5)

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