$8ba^4\cdot b^4$
$\frac{dy}{dx}=\frac{4}{x^2-1}$
$\frac{\left(\left(\sin\left(x\right)+1\right)-2\cos^2\left(x\right)\right)}{\cos\left(x\right)}$
$\int\frac{4}{5x-5}dx$
$\cos^2\left(x\right)=1+\cot^2\left(x\right)$
$-216+104-90$
$9m+12\cdot9m-12$
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