$2\cos^23-1$
$-3x^2+4x-4$
$-x^3-2x^2+5x+6$
$\ln\left(\frac{e^x+1}{e^x-1}\right)$
$\int x^5\sqrt{x^2}-1\:dx$
$\lim_{x\to0}\left(\frac{\sin\:\:^2\left(x\right)}{2\left(1+\cos\:\left(x\right)\right)}\right)$
$32x+80x+50$
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