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

解答

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

0

求解步骤

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

将

y

视为常数

常数微分:

\frac{d}{d x} (a) = 0

= 0

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

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

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