integral of 1/2 (x+y)

Lösung

\int \frac{1}{2} (x + y) d x

\frac{1}{2} (y x + \frac{x ^{2}}{2}) + C

Schritte zur Lösung

\int \frac{1}{2} (x + y) d x

Entferne die Konstante:

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

= \frac{1}{2} \cdot \int y + 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 y d x + \int x d x)

\int y d x = y x

\int x d x = \frac{x ^{2}}{2}

= \frac{1}{2} (y x + \frac{x ^{2}}{2})

Füge eine Konstante zur Lösung hinzu

= \frac{1}{2} (y x + \frac{x ^{2}}{2}) + C

\int \frac{1}{x ^{2} + 8 x + 21} d x

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