integral from 0 to 1 of sin^2(pix)

Lösung

\int_{0}^{1} sin^{2} (π x) d x

\frac{1}{2}

Dezimale

0.5

Schritte zur Lösung

\int_{0}^{1} sin^{2} (π x) d x

Umschreiben mit Hilfe von Trigonometrie-Identitäten

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

Entferne die Konstante:

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

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

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

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

\int_{0}^{1} cos (2 π x) d x = 0

= \frac{1}{2} (1 - 0)

Vereinfache

= \frac{1}{2}

\frac{\partial}{\partial x} (arctan (x + 2 y))

\int \frac{1}{x} ln (x^{2}) d x

x \to 18 lim (\frac{1}{x - 18})

x \to 1 lim (f (x) (5 - x))

x \to 2 lim (5 x^{3} - 3 x + 1)