$\frac{7}{1-sin\left(x\right)}+\frac{7}{1+sin\left(x\right)}$
$-3261-2151+3000$
$3x+11\le14x+8$
$3ba^3\:x\:4a^{-3\:}b\:^{-3}$
$5-2+2-9-3+12$
$\int_{-1}^2\left(x^2e^{4x}\right)dx$
$\lim_{x\to\infty}\left(\frac{x\cos\left(y\right)}{cosy+\left(xsiny\right)}\right)$
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