$2^{8x-2}=4^{4x+1}$
$-3x^2+2xy+1y^2$
$\int cotx\:\sqrt{1-cos\:2x}\:dx$
$3\left(4-b\right)=27$
$\lim_{x\to1}\left(\frac{x^{25}-1}{x^{13}-1}\right)$
$\frac{4}{7}x+24=20$
$\int5\left(\frac{cos\left(2ln\left(x\right)\right)}{x}\right)+2+44x^2dx$
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