(\partial)/(\partial x)(1.85+2.05x+0.656y)

解

\frac{\partial}{\partial x} (1.85 + 2.05 x + 0.656 y)

2.05

解答ステップ

\frac{\partial}{\partial x} (1.85 + 2.05 x + 0.656 y)

y

を定数として扱う

和/差の法則を適用:

(f \pm g)^{'} = f^{'} \pm g^{'}

= \frac{\partial}{\partial x} (1.85) + \frac{\partial}{\partial x} (2.05 x) + \frac{\partial}{\partial x} (0.656 y)

\frac{\partial}{\partial x} (1.85) = 0

\frac{\partial}{\partial x} (2.05 x) = 2.05

\frac{\partial}{\partial x} (0.656 y) = 0

= 0 + 2.05 + 0

簡素化

= 2.05