$\lim_{x\to\pi}\left(\frac{\sin\left(2x\right)-2\sin\left(x\right)}{\sin\left(3x\right)-3\sin\left(x\right)}\right)$
$2x^3-4x^2-19x+12$
$xy^2y'=x+8$
$\int x^{32}dx$
$\lim_{x\to\infty}\left(x^2+1\right)$
$\frac{1}{\cos a^2}$
$5.3+5.8+6.3+5.0+6.0$
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