(\partial)/(\partial x)(e^{kx-mt})

解答

\frac{\partial}{\partial x} (e^{k x - m t})

e^{k x - m t} k

求解步骤

\frac{\partial}{\partial x} (e^{k x - m t})

将

k, m, t

视为常数

使用连锁律:

e^{k x - m t} \frac{\partial}{\partial x} (k x - m t)

= e^{k x - m t} \frac{\partial}{\partial x} (k x - m t)

\frac{\partial}{\partial x} (k x - m t) = k

= e^{k x - m t} k

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