$h ( t ) = \sqrt { t } ( 1 - t ^ { 2 } )$
$15,3+72,850+1,0004+5,3$
$m^{4}n^{5}m^{2}n^{2}$
$\frac{d}{dx}7x^{-3}+x$
$20x^2-7x-40$
$\int\:-7x^2dx$
$\int_1^{\infty}\left(\frac{1}{x^2\sqrt{x^2-1}}\right)dx$
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