$-32-\left[\left(5+16\right)-8\right]$

$\left(x^3+4x^2+x-2\right)+\left(x+1\right)$

$\frac{dy}{dx}=\frac{-5sin\left(x\right)sin\left(y\right)}{cos\left(y\right)}$

$\lim_{x\to\infty}\left(\frac{\pi x^5}{x^5-5x^4}\right)$

$0,25^{-\infty}$

$\frac{1}{\cos\left(x\right)}-\frac{\cos\left(x\right)}{1+\sin\left(x\right)}x$

$x^2-30x+18$