Se uma elipse tem focos nos pontos F1 = (?1,1) e F2 = (1,2)

A 80x ²+68y ²+ 16xy–24x–332y+41=0 B 80x ²–68y ²–16xy–24x–170y–61=0 C 48x ²–60y ²–16xy+26x+180y–41=0 D 48x ²+60y ²– 16xy+24x–180y–41=0 E 80x ²+60y ²+ 16xy–24x–180y–61=0