$\frac{1}{1+2x}\ge-0.1$
$\int\frac{1}{\left(x-1\right)\left(99x-4\right)}dx$
$9\log\left(9\right)v=0$
$2x^2-2x-24$
$\frac{x^5}{\left(\left(x-1\right)\left(x^2+x+1\right)\right)}$
$\lim_{x\to\infty}\left(\frac{5sinx}{3x}\right)$
$6\:+\:2x\:+\:4x\:+9$
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