Ответ (Неопределённый)
[src]
/ / ___ \ / ___ \ \
___ ____ | |\/ 2 *(1 + 2*x)| |\/ 2 *(1 + 2*x)| |
/ \/ 2 *\/ pi *|cos(1/4)*S|---------------| - C|---------------|*sin(1/4)|
| | | ____ | | ____ | |
| / 2\ \ \ 2*\/ pi / \ 2*\/ pi / /
| sin\x + x / dx = C + ------------------------------------------------------------------------
| 2
/
$${{\sqrt{\pi}\,\left(\left(\left(\sqrt{2}\,i-\sqrt{2}\right)\,\sin
\left({{1}\over{4}}\right)+\left(\sqrt{2}\,i+\sqrt{2}\right)\,\cos
\left({{1}\over{4}}\right)\right)\,\mathrm{erf}\left({{2\,i\,x+i
}\over{\sqrt{2}\,i+\sqrt{2}}}\right)+\left(\left(-\sqrt{2}\,i-\sqrt{
2}\right)\,\sin \left({{1}\over{4}}\right)+\left(\sqrt{2}-\sqrt{2}\,
i\right)\,\cos \left({{1}\over{4}}\right)\right)\,\mathrm{erf}\left(
{{2\,i\,x+i}\over{\sqrt{2}\,i-\sqrt{2}}}\right)+\left(\left(\sqrt{2}
\,i+\sqrt{2}\right)\,\sin \left({{1}\over{4}}\right)+\left(\sqrt{2}
\,i-\sqrt{2}\right)\,\cos \left({{1}\over{4}}\right)\right)\,
\mathrm{erf}\left({{2\,i\,x+i}\over{2\,\sqrt{-i}}}\right)+\left(
\left(\sqrt{2}\,i-\sqrt{2}\right)\,\sin \left({{1}\over{4}}\right)+
\left(\sqrt{2}\,i+\sqrt{2}\right)\,\cos \left({{1}\over{4}}\right)
\right)\,\mathrm{erf}\left({{2\,i\,x+i}\over{2\,\left(-1\right)^{{{1
}\over{4}}}}}\right)\right)}\over{16}}$$
/ / ___ \ / ___ \ \ / / ___ \ / ___ \ \
___ ____ | |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 / \2*\/ pi / / \ \2*\/ pi / \2*\/ pi / /
---------------------------------------------------------- - ----------------------------------------------------------
2 2
$${{\sqrt{\pi}\,\left(\left(\left(\sqrt{2}\,i-\sqrt{2}\right)\,\sin
\left({{1}\over{4}}\right)+\left(\sqrt{2}\,i+\sqrt{2}\right)\,\cos
\left({{1}\over{4}}\right)\right)\,\mathrm{erf}\left({{3\,i}\over{
\sqrt{2}\,i+\sqrt{2}}}\right)+\left(\left(-\sqrt{2}\,i-\sqrt{2}
\right)\,\sin \left({{1}\over{4}}\right)+\left(\sqrt{2}-\sqrt{2}\,i
\right)\,\cos \left({{1}\over{4}}\right)\right)\,\mathrm{erf}\left(
{{3\,i}\over{\sqrt{2}\,i-\sqrt{2}}}\right)+\left(\left(\sqrt{2}\,i+
\sqrt{2}\right)\,\sin \left({{1}\over{4}}\right)+\left(\sqrt{2}\,i-
\sqrt{2}\right)\,\cos \left({{1}\over{4}}\right)\right)\,
\mathrm{erf}\left({{3\,i}\over{2\,\sqrt{-i}}}\right)+\left(\left(
\sqrt{2}\,i-\sqrt{2}\right)\,\sin \left({{1}\over{4}}\right)+\left(
\sqrt{2}\,i+\sqrt{2}\right)\,\cos \left({{1}\over{4}}\right)\right)
\,\mathrm{erf}\left({{3\,i}\over{2\,\left(-1\right)^{{{1}\over{4}}}
}}\right)\right)}\over{16}}-{{\sqrt{\pi}\,\left(\left(\left(\sqrt{2}
\,i-\sqrt{2}\right)\,\sin \left({{1}\over{4}}\right)+\left(\sqrt{2}
\,i+\sqrt{2}\right)\,\cos \left({{1}\over{4}}\right)\right)\,
\mathrm{erf}\left({{i}\over{\sqrt{2}\,i+\sqrt{2}}}\right)+\left(
\left(-\sqrt{2}\,i-\sqrt{2}\right)\,\sin \left({{1}\over{4}}\right)+
\left(\sqrt{2}-\sqrt{2}\,i\right)\,\cos \left({{1}\over{4}}\right)
\right)\,\mathrm{erf}\left({{i}\over{\sqrt{2}\,i-\sqrt{2}}}\right)+
\left(\left(\sqrt{2}\,i+\sqrt{2}\right)\,\sin \left({{1}\over{4}}
\right)+\left(\sqrt{2}\,i-\sqrt{2}\right)\,\cos \left({{1}\over{4}}
\right)\right)\,\mathrm{erf}\left({{i}\over{2\,\sqrt{-i}}}\right)+
\left(\left(\sqrt{2}\,i-\sqrt{2}\right)\,\sin \left({{1}\over{4}}
\right)+\left(\sqrt{2}\,i+\sqrt{2}\right)\,\cos \left({{1}\over{4}}
\right)\right)\,\mathrm{erf}\left({{i}\over{2\,\left(-1\right)^{{{1
}\over{4}}}}}\right)\right)}\over{16}}$$
=
/ / ___ \ / ___ \ \ / / ___ \ / ___ \ \
___ ____ | |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 / \2*\/ pi / / \ \2*\/ pi / \2*\/ pi / /
---------------------------------------------------------- - ----------------------------------------------------------
2 2
$$- \frac{\sqrt{2} \sqrt{\pi} \left(- \sin{\left(\frac{1}{4} \right)} C\left(\frac{\sqrt{2}}{2 \sqrt{\pi}}\right) + \cos{\left(\frac{1}{4} \right)} S\left(\frac{\sqrt{2}}{2 \sqrt{\pi}}\right)\right)}{2} + \frac{\sqrt{2} \sqrt{\pi} \left(- \sin{\left(\frac{1}{4} \right)} C\left(\frac{3 \sqrt{2}}{2 \sqrt{\pi}}\right) + \cos{\left(\frac{1}{4} \right)} S\left(\frac{3 \sqrt{2}}{2 \sqrt{\pi}}\right)\right)}{2}$$