$\left(z^4+2y^3\right)^2$
$\frac{a}{\sqrt{a+b}}$
$3\sin^2\left(w\right)+19\sin\left(w+28\right)$
$\int\frac{5}{x^2+9x+18}dx$
$\sec\left(5x\right)\sin\left(5x\right)$
$\lim_{x\to2}\left(6x-8\right)$
$\int\frac{9x^2+5}{3x}dx$
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