$cos^2\theta\:\left(tan^2\theta\:\:+1\right)=1$
$5m=35$
$\frac{dy}{dx}\left(1+x^2\right)=\:-xy$
$\int3\left(3x+1\right)dx$
$x^3+x-2$
$\left(8x^3+48x^2+96x+64\:\right)-x+2$
$\left(-3.8\right)+0+\left(-0.6\right)+6.4$
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