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Beliebt Rechnen >

integral from 0 to pi/6 of 64sin^2(x)

Lösung

\int_{0}^{\frac{π}{6}} 64 sin^{2} (x) d x

Lösung

32 (\frac{π}{6} - \frac{3}{4})

+1

Dezimale

2.89875 \dots

Schritte zur Lösung

\int_{0}^{\frac{π}{6}} 64 sin^{2} (x) d x

Entferne die Konstante:

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

= 64 \cdot \int_{0}^{\frac{π}{6}} sin^{2} (x) d x

Umschreiben mit Hilfe von Trigonometrie-Identitäten

= 64 \cdot \int_{0}^{\frac{π}{6}} \frac{1 - cos ( 2 x )}{2} d x

Entferne die Konstante:

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

= 64 \cdot \frac{1}{2} \cdot \int_{0}^{\frac{π}{6}} 1 - cos (2 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

= 64 \cdot \frac{1}{2} (\int_{0}^{\frac{π}{6}} 1 d x - \int_{0}^{\frac{π}{6}} cos (2 x) d x)

\int_{0}^{\frac{π}{6}} 1 d x = \frac{π}{6}

\int_{0}^{\frac{π}{6}} cos (2 x) d x = \frac{3}{4}

= 64 \cdot \frac{1}{2} (\frac{π}{6} - \frac{3}{4})

Vereinfache

64 \cdot \frac{1}{2} (\frac{π}{6} - \frac{3}{4}) : 32 (\frac{π}{6} - \frac{3}{4})

= 32 (\frac{π}{6} - \frac{3}{4})

Graph

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