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Beliebt Rechnen >

integral from 0 to pi of 11sin^2(2x)

Lösung

\int_{0}^{π} 11 sin^{2} (2 x) d x

Lösung

\frac{11 π}{2}

+1

Dezimale

17.27875 \dots

Schritte zur Lösung

\int_{0}^{π} 11 sin^{2} (2 x) d x

Entferne die Konstante:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 11 \cdot \int_{0}^{π} sin^{2} (2 x) d x

Umschreiben mit Hilfe von Trigonometrie-Identitäten

= 11 \cdot \int_{0}^{π} \frac{1}{2} (1 - cos (4 x)) d x

Entferne die Konstante:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 11 \cdot \frac{1}{2} \cdot \int_{0}^{π} 1 - cos (4 x) 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

= 11 \cdot \frac{1}{2} (\int_{0}^{π} 1 d x - \int_{0}^{π} cos (4 x) d x)

\int_{0}^{π} 1 d x = π

\int_{0}^{π} cos (4 x) d x = 0

= 11 \cdot \frac{1}{2} (π - 0)

Vereinfache

11 \cdot \frac{1}{2} (π - 0) : \frac{11 π}{2}

= \frac{11 π}{2}

Graph

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