$\int_{\frac{2\pi}{3}}^{\frac{4\pi}{3}}\left(\frac{1}{2}\left(1+2\cos\left(\theta\:\right)\right)^2\right)d\theta\:$
$722+926$
$-30a^2+25a^4+9a^4$
$-26-\left(39+59\right)$
$\frac{x^3}{x^2+2x-3}$
$\left(7y\:+\:11\right)^2$
$\frac{ab}{2a-\sqrt{b}}$
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