oo / | | 1 | -------------- dx | 2 | 2*x + 6*x + 3 | / 2
Integral(1/(2*x^2 + 6*x + 3), (x, 2, oo))
// / ___ \ \ || ___ |2*\/ 3 *(3/2 + x)| | ||-\/ 3 *acoth|-----------------| | / || \ 3 / 2 | | ||-------------------------------- for (3/2 + x) > 3/4| | 1 || 6 | | -------------- dx = C + 2*|< | | 2 || / ___ \ | | 2*x + 6*x + 3 || ___ |2*\/ 3 *(3/2 + x)| | | ||-\/ 3 *atanh|-----------------| | / || \ 3 / 2 | ||-------------------------------- for (3/2 + x) < 3/4| \\ 6 /
/ ___\ / ___\ ___ |7 \/ 3 | ___ |7 \/ 3 | \/ 3 *log|- - -----| \/ 3 *log|- + -----| \2 2 / \2 2 / - -------------------- + -------------------- 6 6
=
/ ___\ / ___\ ___ |7 \/ 3 | ___ |7 \/ 3 | \/ 3 *log|- - -----| \/ 3 *log|- + -----| \2 2 / \2 2 / - -------------------- + -------------------- 6 6
-sqrt(3)*log(7/2 - sqrt(3)/2)/6 + sqrt(3)*log(7/2 + sqrt(3)/2)/6
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.