$^{5^{-2}}\cdot10^2$
$2\sec^2x-8\tan\:x=-4$
$8\cdot\:\left(-152\right)$
$\frac{\left(8ab^5\right)}{\left(2a^4b^4\right)}$
$2\sqrt{1}$
$3tan2x\:=\:1$
$15x^2-x-2$
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