integral from 0 to 1 of 2x^2-1

Lösung

\int_{0}^{1} 2 x^{2} - 1 d x

- \frac{1}{3}

Dezimale

- 0.33333 \dots

Schritte zur Lösung

\int_{0}^{1} 2 x^{2} - 1 d x

Wende die Summenregel an:

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

= \int_{0}^{1} 2 x^{2} d x - \int_{0}^{1} 1 d x

\int_{0}^{1} 2 x^{2} d x = \frac{2}{3}

\int_{0}^{1} 1 d x = 1

= \frac{2}{3} - 1

Vereinfache

\frac{2}{3} - 1 : - \frac{1}{3}

= - \frac{1}{3}

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n = 1 \sum \infty sin (πn)

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