$-1,054\:-\:-151,331$
$\frac{26}{-13}$
$\sec^2b+\tan^2b=2\tan^2b+1$
$x^2+3x+2\le\:0$
$\left(\frac{4}{2n}\right)^3$
$\frac{x^2-8x+6}{x-4}$
$f\left(-5\right)=\sqrt{-5}-2$
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