$2^y=8$
$800+-468$
$-8+1+-15$
$\:3x^2+2x-33$
$\frac{\cot\left(a\right)\cos\left(\frac{\pi}{2}-a\right)}{\cos\left(a\right)}$
$8\:+\:14\:-\:\left(-15\right)\:-\:2\:+\:\left(-6\right)\:-\:10$
$2x^2-2x+2$
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