$\frac{x-1}{x+1}>2$
$-3x-15$
$x^2+4x+3\ge0$
$4x^2-2x+3x^2-10x^2+5$
$\int\left(x\cdot\left(x^2-1\right)^{-\frac{3}{2}}\right)dx$
$\frac{\left(\left(n+1\right)x^n\right)}{2^n+n}$
$y=4tan\left(\pi\:\left(-1.75\right)+\pi\:\right)-2$
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