①实轴虚部为0 m^2-3m+2=0(m-1)(m-2)=0 m-1=0 m=1 m-2=0 m=2
②虚轴 实部为0 m^2-5m+6=0 (m-2)(m-3)=0 m-2=0 m=2 m-3=0 m=3 m=2 m^2-3m+2=0 m=3
③第一象限 实部 虚部 均大于0 m^2-5m+6>0 (m-2)(m-3)>0 m>3 ,m0 (m-1)(m-2)>0 m>2 m
①实轴虚部为0 m^2-3m+2=0(m-1)(m-2)=0 m-1=0 m=1 m-2=0 m=2
②虚轴 实部为0 m^2-5m+6=0 (m-2)(m-3)=0 m-2=0 m=2 m-3=0 m=3 m=2 m^2-3m+2=0 m=3
③第一象限 实部 虚部 均大于0 m^2-5m+6>0 (m-2)(m-3)>0 m>3 ,m0 (m-1)(m-2)>0 m>2 m