$\int x^2cos\:mx\:dx$
$\lim_{x\to0}\left(\frac{7x+sinx}{2x+cosx}\right)$
$\frac{\sin\left(x\right)}{\sqrt{\left(1-\cos^2\left(x\right)\right)}}$
$f\left(x\right)=\left(x^2-3x+2\right)\left(3x^3-x^2+4\right)$
$3x-1+4-2x$
$-15xy+32xy$
$x^3-3x-13x+15$
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