$\frac{2x^3y^{-2}}{2x^2}$
$\sin\left(16\right)\cos\left(29\right)+\sin\left(29\right)\cos\left(16\right)$
$\lim_{x\to\infty}\left(\sin^2\left(1+\frac{1}{x}\right)\right)$
$\lim_{h\to3}\frac{\sqrt{2h+3-h\:}}{h-3}$
$\frac{\left(sin\left(y\right)-sin\left(y\right)\right)^3}{\left(cos\left(y\right)-cos\left(y\right)\right)^3}$
$\int\sec^2\left(7x-4\right)dx$
$\frac{2x-1}{x+1}\le1$
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