$1+\tan^2\infty=\frac{1}{\cos^2\infty}$
$3x^3-2x-1$
$1407+1752$
$y^{\left(-3\right)}x^{\left(6\right)}+y^{\left(6\right)}x^{\left(-3\right)}=2x+1$
$\lim_{x\to4}\left(\frac{x^2-3x-4}{x^2+x-12}\right)$
$-2+3-\left(-4\right)\left(-4\right)$
$\left(-19\right)\:+\:\left(-100\right)\:-\:\left(-59\right)\:+\:29$
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