$2sin^{\left(2\right)}\:a\:-\:3sin\:a\:-2\:=0$
$9x^2-30x+425$
$\log_e\left(\frac{7+x}{7-x}\right)$
$\sqrt[3]{125a^3b^{18}}$
$\left(\frac{x-1}{x^2-2x+1}\right)^3$
$-146+409$
$n^4+10n^2g+25g^2$
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