integral from-3 to 2 of 9-x^2-x-3

解

\int_{- 3}^{2} 9 - x^{2} - x - 3 d x

\frac{125}{6}

十進法表記

20.83333 \dots

解答ステップ

\int_{- 3}^{2} 9 - x^{2} - x - 3 d x

簡素化

= \int_{- 3}^{2} - x^{2} - x + 6 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_{- 3}^{2} x^{2} d x - \int_{- 3}^{2} x d x + \int_{- 3}^{2} 6 d x

\int_{- 3}^{2} x^{2} d x = \frac{35}{3}

\int_{- 3}^{2} x d x = - \frac{5}{2}

\int_{- 3}^{2} 6 d x = 30

= - \frac{35}{3} - (- \frac{5}{2}) + 30

簡素化

- \frac{35}{3} - (- \frac{5}{2}) + 30 : \frac{125}{6}

= \frac{125}{6}