$y'=\tan\left(x\right)y+\cos\left(x\right)$

$x^3-3x^2+2x$

$\frac{2}{2^2-2x+5}$

$16c^2+8c+1$

$\lim\:_{n\to\:\infty\:\:}\left(\frac{\left(n-1\right)\left(n-2\right)}{5}\right)$

$\frac{d^2}{dx^2}\left(x\cdot\cos\left(x\right)\right)\frac{6x^2}{2x^3+y}$

$e^{\frac{x}{2}}-1-senx+\frac{x}{2}$