$\int_0^{\frac{\pi}{4}}\left(\frac{7+9cos^2\left(x\right)}{cos^2\left(x\right)}\right)dx$
$\frac { ( 3 x + 2 ) ^ { 2 } } { 4 }$
$y'+2xy=e^{-x^2}arcsinx$
$72\:x\:+28$
$h\left(x\right)=\left|-7+7\right|$
$\frac{9yx^2}{3xy}$
$500+-8200$
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