$-2x^2<4$
$16+8d+d^2$
$45+28+103$
$\frac{\sqrt[2]{1+x^2}}{\left(1+x^2\right)}$
$\int\frac{9x}{x^3-3x+2}dx$
$49az^2-25a^3=0$
$\csc\left(2.20704525\right)$
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