Hello, 1. The problem statement, all variables and given/known data I'd like to draw the E-K diagram for the following within the first brillouin (-π/a≤k≤π/a): Conduction band: E(k) = E0 + Ak2 - Bk4 Valence band: E(k) = Ccos(ka) Where E0=1.48eV; C=0.3eV; B=2.78*10-31eVcm4; A=1.69*10-15eVcm2 2. Relevant equations 3. The attempt at a solution Should I simply plug in some arbitrary values within the specified domain? How ought this to be approached?