User:RickettsAM

Left 4 Dead
Left $\ds \int_0^{\sqrt 8}x dx$ Dead

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

Left $2^2$ Dead

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

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

Left $|-4|$ Dead

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

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

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

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

Left $\lceil \pi \rceil$ Dead

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

Left $\phi{(5)}$ Dead

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

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

Left $|\Z_5^*|$ 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