$\frac{dy}{dx}=\frac{t}{x}$
$-\frac{96}{y^7}\cdot2$
$\lim_{x\to0}\left(\frac{\sqrt{x^2+y^2+1}-1}{x^2+y^2}\right)$
$5x^2+20x+3$
$\left(b-\frac{a}{2}\right)^2$
$2u^2-u-1=0$
$\frac{n^n}{\left[ln\left(n+1\right)\right]^n}$
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