If the equation m(x-1)-n(x-2)for x has infinite roots,then m(的2005次方)+n(的2005次方)=打错了If the equation m(x-1)-2005-n(x-2)for x has infinite roots,then m(的2005次方)+n(的2005次方)=
问题描述:
If the equation m(x-1)-n(x-2)for x has infinite roots,then m(的2005次方)+n(的2005次方)=
打错了
If the equation m(x-1)-2005-n(x-2)for x has infinite roots,then m(的2005次方)+n(的2005次方)=
答
m^(x-1)-n^(x-2)=0→① if m=n=0,m(的2005次方)+n(的2005次方)=0;② if m=n=1,m(的2005次方)+n(的2005次方)=2;③ others:m^(x-1)-n^(x-2)=0 →m-(n/m)^(x-2)=0 →(n/m)^(x-2)=m;in the case of n>m>0,→{lim...