derivative f(x)=5.5x+2.2

解答

导数

f (x) = 5.5 x + 2.2

5.5

求解步骤

\frac{d}{d x} (5.5 x + 2.2)

使用微分加减法定则:

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

= \frac{d}{d x} (5.5 x) + \frac{d}{d x} (2.2)

\frac{d}{d x} (5.5 x) = 5.5

\frac{d}{d x} (2.2) = 0

= 5.5 + 0

化简

= 5.5

\frac{d}{d x} (- \frac{300}{x ^{4}})

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