$2sin\left(\frac{x}{2}\right)+1=0$
$\cos^{10}x-\cos^{12}$
$\left(\frac{a}{4\pi}\right)^{\frac{1}{2}}$
$216w^{12}-729z^{21}$
$\frac{8}{5}x=48$
$\int\left(x^3-2\right)^43x^2dx$
$5x^2-50x+30=0$
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