$\frac{dy}{dx}=e^{-y}sinxcosx$

$\lim_{x\to\infty}\left(\frac{3x^3+5}{5x^2+1}\right)$

$x+\frac{1}{2}<4$

$( 2 b + 2 ) - 3 ( 7 b - 4 )$

$\int\frac{-2x-2}{\left(x^2-10x+26\right)\left(x^2-8x+17\right)}dx$

$5t\:\frac{3m}{s\:}\:1$

$\lim_{x\to\infty}\left(\cos\left(x\right)\ln\left(\tan\left(x\right)\right)\right)$