Integral de sin(x)*cos(x^2) dx
Solución
Respuesta (Indefinida)
[src]
/ / ___ \ / ___ \ \ / / ___ \ / ___ \ \
___ ____ | |\/ 2 *(-1 + 2*x)| |\/ 2 *(-1 + 2*x)| | ___ ____ | |\/ 2 *(1 + 2*x)| |\/ 2 *(1 + 2*x)| |
/ \/ 2 *\/ pi *|cos(1/4)*S|----------------| - C|----------------|*sin(1/4)| \/ 2 *\/ pi *|cos(1/4)*S|---------------| - C|---------------|*sin(1/4)|
| | | ____ | | ____ | | | | ____ | | ____ | |
| / 2\ \ \ 2*\/ pi / \ 2*\/ pi / / \ \ 2*\/ pi / \ 2*\/ pi / /
| sin(x)*cos\x / dx = C - -------------------------------------------------------------------------- + ------------------------------------------------------------------------
| 4 4
/
∫sin(x)cos(x2)dx=C−42π(−sin(41)C(2π2(2x−1))+cos(41)S(2π2(2x−1)))+42π(−sin(41)C(2π2(2x+1))+cos(41)S(2π2(2x+1)))
Gráfica
/ / ___ \ / ___ \ \ / / ___ \ / ___ \ \ / / ___ \ / ___ \\
___ ____ | | \/ 2 | | \/ 2 | | ___ ____ | |3*\/ 2 | |3*\/ 2 | | ___ ____ | | \/ 2 | | \/ 2 ||
\/ 2 *\/ pi *|cos(1/4)*S|--------| - C|--------|*sin(1/4)| \/ 2 *\/ pi *|cos(1/4)*S|--------| - C|--------|*sin(1/4)| \/ 2 *\/ pi *|C|--------|*sin(1/4) - cos(1/4)*S|--------||
| | ____| | ____| | | | ____| | ____| | | | ____| | ____||
\ \2*\/ pi / \2*\/ pi / / \ \2*\/ pi / \2*\/ pi / / \ \2*\/ pi / \2*\/ pi //
- ---------------------------------------------------------- + ---------------------------------------------------------- + ----------------------------------------------------------
2 4 4
42π(−cos(41)S(2π2)+sin(41)C(2π2))−22π(−sin(41)C(2π2)+cos(41)S(2π2))+42π(−sin(41)C(2π32)+cos(41)S(2π32))
=
/ / ___ \ / ___ \ \ / / ___ \ / ___ \ \ / / ___ \ / ___ \\
___ ____ | | \/ 2 | | \/ 2 | | ___ ____ | |3*\/ 2 | |3*\/ 2 | | ___ ____ | | \/ 2 | | \/ 2 ||
\/ 2 *\/ pi *|cos(1/4)*S|--------| - C|--------|*sin(1/4)| \/ 2 *\/ pi *|cos(1/4)*S|--------| - C|--------|*sin(1/4)| \/ 2 *\/ pi *|C|--------|*sin(1/4) - cos(1/4)*S|--------||
| | ____| | ____| | | | ____| | ____| | | | ____| | ____||
\ \2*\/ pi / \2*\/ pi / / \ \2*\/ pi / \2*\/ pi / / \ \2*\/ pi / \2*\/ pi //
- ---------------------------------------------------------- + ---------------------------------------------------------- + ----------------------------------------------------------
2 4 4
42π(−cos(41)S(2π2)+sin(41)C(2π2))−22π(−sin(41)C(2π2)+cos(41)S(2π2))+42π(−sin(41)C(2π32)+cos(41)S(2π32))
-sqrt(2)*sqrt(pi)*(cos(1/4)*fresnels(sqrt(2)/(2*sqrt(pi))) - fresnelc(sqrt(2)/(2*sqrt(pi)))*sin(1/4))/2 + sqrt(2)*sqrt(pi)*(cos(1/4)*fresnels(3*sqrt(2)/(2*sqrt(pi))) - fresnelc(3*sqrt(2)/(2*sqrt(pi)))*sin(1/4))/4 + sqrt(2)*sqrt(pi)*(fresnelc(sqrt(2)/(2*sqrt(pi)))*sin(1/4) - cos(1/4)*fresnels(sqrt(2)/(2*sqrt(pi))))/4
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.