User:RickettsAM

Left 4 Dead
Left $$\int_{0}^{\sqrt{8}}x dx$$ Dead

Left $$1$$ Dead ($$\mod{3}$$)

Left $$2^2$$ Dead

Left $$(\text{the first perfect number} - 2)$$ Dead

Left $$\frac{d}{dx}4x$$ Dead

Left $$|-4|$$ Dead

Left $$|\{a,b,c,d\}|$$ Dead

Left $${{4}\choose{3}}$$ Dead

Left $$\frac{4!}{6}$$ Dead

Left $$\lim_{x\rightarrow 2} \left (\frac{x^2-4}{x-2} \right )$$ Dead

Left $$\lceil \pi \rceil$$ Dead

Left $$|1+\sqrt{3}i|^2$$ Dead

Left $$\phi{(5)}$$ Dead

Left $$\gcd{(12,20)}$$ Dead

Left $$2\sum_{i=0}^{\infty}\left(\frac{1}{2}\right)^i$$ Dead

Left $$|\mathbb{Z}_{5}^{*}|$$ Dead

Left $$\sqrt[5]{1024}$$ Dead

Left $$\text{sup}(-\infty,4)$$ Dead

Left $$\det \left|\begin{array}{cccc} 1 & 1 & 0 & 0 \\ 1 & 0 & 0 & 0 \\ 0 & 0 & 4 & 0 \\ 0 & 0 & 0 & -1\end{array}\right|$$ Dead