$\int\:\frac{x+1}{\sqrt{x^2+2x+5}}\:dx$
$\int\frac{x^2}{\sqrt{4-\left(x-2\right)^2}}dx$
$6x+2y=0$
$x+6<4-3x$
$\left(32r\right)^{\frac{8}{5}}$
$\lim_{x\to-1.99}\left(\frac{x^2-4}{x+2}\right)$
$\lim_{x\to0}\left(\frac{x^2+3}{sen\left(x\right)}\right)$
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