$3x^2+2x+9+2x^2+7x+5$
$8\cdot\cos\left(36.87\right)$
$\int_0^1\left(\frac{x}{x^2+x+2}\right)dx$
$a+a^2$
$\sqrt{\frac{19.6\cdot4\cdot10^{12}}{\infty}}$
$\cot\left(x\right)^2-2\csc\left(x\right)^2=-5$
$52^21^3-3$
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