/ ___ \
1 ___ ____ |\/ 6 |
/ \/ 6 *\/ pi *fresnels|------|*gamma(3/4)
| | ____|
| / 2\ \\/ pi /
| sin\3*x / dx = ----------------------------------------
| 8*gamma(7/4)
/
0
$${{\sqrt{\pi}\,\left(\left(\sqrt{2}\,\sqrt{3}\,i+\sqrt{2}\,\sqrt{3}
\right)\,\mathrm{erf}\left({{\sqrt{2}\,\sqrt{3}\,i+\sqrt{2}\,\sqrt{3
}}\over{2}}\right)+\left(\sqrt{2}\,\sqrt{3}\,i-\sqrt{2}\,\sqrt{3}
\right)\,\mathrm{erf}\left({{\sqrt{2}\,\sqrt{3}\,i-\sqrt{2}\,\sqrt{3
}}\over{2}}\right)+\left(\sqrt{2}\,\sqrt{3}-\sqrt{2}\,\sqrt{3}\,i
\right)\,\mathrm{erf}\left(\sqrt{3}\,\sqrt{-i}\right)+\left(\sqrt{2}
\,\sqrt{3}\,i+\sqrt{2}\,\sqrt{3}\right)\,\mathrm{erf}\left(\left(-1
\right)^{{{1}\over{4}}}\,\sqrt{3}\right)\right)}\over{48}}$$
Ответ (Неопределённый)
[src] / ___\
___ ____ |x*\/ 6 |
/ \/ 6 *\/ pi *fresnels|-------|*gamma(3/4)
| | ____|
| / 2\ \ \/ pi /
| sin\3*x / dx = C + -----------------------------------------
| 8*gamma(7/4)
/
$${{\sqrt{\pi}\,\left(\left(\sqrt{2}\,\sqrt{3}\,i+\sqrt{2}\,\sqrt{3}
\right)\,\mathrm{erf}\left({{\left(\sqrt{2}\,\sqrt{3}\,i+\sqrt{2}\,
\sqrt{3}\right)\,x}\over{2}}\right)+\left(\sqrt{2}\,\sqrt{3}\,i-
\sqrt{2}\,\sqrt{3}\right)\,\mathrm{erf}\left({{\left(\sqrt{2}\,
\sqrt{3}\,i-\sqrt{2}\,\sqrt{3}\right)\,x}\over{2}}\right)+\left(
\sqrt{2}\,\sqrt{3}-\sqrt{2}\,\sqrt{3}\,i\right)\,\mathrm{erf}\left(
\sqrt{3}\,\sqrt{-i}\,x\right)+\left(\sqrt{2}\,\sqrt{3}\,i+\sqrt{2}\,
\sqrt{3}\right)\,\mathrm{erf}\left(\left(-1\right)^{{{1}\over{4}}}\,
\sqrt{3}\,x\right)\right)}\over{48}}$$