integral from 0 to 1 of 3x^2e^{x^3}

Lösung

\int_{0}^{1} 3 x^{2} e^{x^{3}} d x

e - 1

Dezimale

1.71828 \dots

Schritte zur Lösung

\int_{0}^{1} 3 x^{2} e^{x^{3}} d x

Entferne die Konstante:

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

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

Wende U-Substitution an

= 3 \cdot \int_{0}^{1} \frac{e ^{u}}{3} d u

Entferne die Konstante:

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

= 3 \cdot \frac{1}{3} \cdot \int_{0}^{1} e^{u} d u

Nutze das gemeinsame Integral :

\int e^{u} d u = e^{u}

= 3 \cdot \frac{1}{3} [e^{u}]_{0}^{1}

Vereinfache

3 \cdot \frac{1}{3} [e^{u}]_{0}^{1} : [e^{u}]_{0}^{1}

= [e^{u}]_{0}^{1}

Berechne die Grenzen:

e - 1

= e - 1

\int_{1}^{2} x (x - 1) d x

\int_{- 1}^{3} 2 x^{3} d x

\int_{0}^{a} (3 x^{2} - x + 1) d x

\int_{0}^{0.3} 3 e^{- x^{2}} d x

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