$\frac{1}{4}\left(sin\left(\frac{1}{8}\right)cos\left(\frac{1}{64}\right)+sin\left(\frac{3}{8}\right)cos\left(\frac{9}{64}\right)+sin\left(\frac{5}{8}\right)cos\left(\frac{25}{64}\right)+sin\left(\frac{7}{8}\right)cos\left(\frac{49}{64}\right)\right)$

$32^5$

$\int_0^{\pi}\left(5x\sin\left(x\right)\right)dx$

$-4n+-n-6n-9-3n$

$\frac{2x+4}{x\left(x+4\right)}$

$\left(a-b\right)\left(b\right)\left(a\right)\left(b\right)$

$\int e^{y^3}dy$