\( \int \limits_{-1}^{1,5} e^{3 x+2} *d x \)
\( 3 x+2=u \)→\( x=\frac{u-2}{3} \) → \( dx=\frac{1}{3}*du \)
Begrenzungsumrechnung:
\( 3 *(-1)+2=u \) \(u₁=-1\)
\( 3 *(1,5)+2=u \) \(u₂=6,5\)
\( \int \limits_{-1}^{1,5} e^{3 x+2} *d x=\int \limits_{-1}^{6,5} e^{u} *\frac{1}{3}*du=[\frac{1}{3}*e^{u}] =[\frac{1}{3}*e^{6,5}]-[\frac{1}{3}*e^{-1}]≈221,6\)