$\left(\frac{1}{3}\:+\frac{1}{3}cosw\:+\frac{2}{9}cos2w\right)^2$
$\int\frac{23}{x^2\sqrt{x^2+100}}dx$
$\left(1.8wz-1.7z^2\right)^3$
$\left(\frac{1}{2}+a\right)\left(\frac{1}{2}-a\right)$
$\int3cdx$
$area\:\ln\:x,\:x^2-2$
$\int_0^{\infty}\left(x^3-x\right)e^{-x}dx$
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