$\frac{8}{1-x^7}$
$\frac{dy}{dx}\left(x+y+2\right)^2$
$\frac{2}{\left(x+1\right)}=\frac{1}{\left(x-2\right)}$
$\frac{tan\left(193^{\circ\:}\right).cos\left(-13^{\circ\:}\right)}{cos\left(103^{\circ\:\:}\right).\:sin\left(330^{\circ\:\:}\right)}$
$12x^2+5x-2=0$
$6\cos^2\left(x\right)+\cos\left(x\right)=1$
$\left(\frac{2}{3}a^{2}b-\frac{3}{4}c^{4}\right)^{2}$
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