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人気のある微分積分 >

integral from 1 to 2 of (x^2-4x)

解

\int_{1}^{2} (x^{2} - 4 x) d x

解

- \frac{11}{3}

+1

十進法表記

- 3.66666 \dots

解答ステップ

\int_{1}^{2} x^{2} - 4 x d x

総和規則を適用する:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int_{1}^{2} x^{2} d x - \int_{1}^{2} 4 x d x

\int_{1}^{2} x^{2} d x = \frac{7}{3}

\int_{1}^{2} 4 x d x = 6

= \frac{7}{3} - 6

簡素化

\frac{7}{3} - 6 : - \frac{11}{3}

= - \frac{11}{3}

グラフ

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