/ ___\
1 ___ ____ |2*\/ 2 |
/ 3*\/ 2 *\/ pi *fresnels|-------|*gamma(3/4)
| | ____|
| / 2\ \ \/ pi /
| sin\4*x / dx = -------------------------------------------
| 16*gamma(7/4)
/
0
$${{\sqrt{\pi}\,\left(\left(\sqrt{2}\,i+\sqrt{2}\right)\,\mathrm{erf}
\left(\sqrt{2}\,i+\sqrt{2}\right)+\left(\sqrt{2}\,i-\sqrt{2}\right)
\,\mathrm{erf}\left(\sqrt{2}\,i-\sqrt{2}\right)+\left(\sqrt{2}-
\sqrt{2}\,i\right)\,\mathrm{erf}\left(2\,\sqrt{-i}\right)+\left(
\sqrt{2}\,i+\sqrt{2}\right)\,\mathrm{erf}\left(2\,\left(-1\right)^{
{{1}\over{4}}}\right)\right)}\over{32}}$$
Ответ (Неопределённый)
[src] / ___\
___ ____ |2*x*\/ 2 |
/ 3*\/ 2 *\/ pi *fresnels|---------|*gamma(3/4)
| | ____ |
| / 2\ \ \/ pi /
| sin\4*x / dx = C + ---------------------------------------------
| 16*gamma(7/4)
/
$${{\sqrt{\pi}\,\left(\left(\sqrt{2}\,i+\sqrt{2}\right)\,\mathrm{erf}
\left(\left(\sqrt{2}\,i+\sqrt{2}\right)\,x\right)+\left(\sqrt{2}-
\sqrt{2}\,i\right)\,\mathrm{erf}\left(\left(\sqrt{2}-\sqrt{2}\,i
\right)\,x\right)+\left(\sqrt{2}-\sqrt{2}\,i\right)\,\mathrm{erf}
\left(2\,\sqrt{-i}\,x\right)+\left(\sqrt{2}\,i+\sqrt{2}\right)\,
\mathrm{erf}\left(2\,\left(-1\right)^{{{1}\over{4}}}\,x\right)
\right)}\over{32}}$$