Find Beta and Gamma for an electron that has a kinetic energy of 6.00 keV.

gamma = KE/MoC^2 + 1

Beta = 1/gamma^2 + 1

gamma = 1.011723381
Beta = 1.9769592

I am getting gamma right but I am getting Beta wrong what I'm I doing wrong??

You are using an incorrect equation for beta.

Beta = v/c, which cannot exceed 1.

Beta^2 = 1 - (1/gamma)^2