特征方程怎么解?举个例子,x︿3-6x︿2+11x-6=0怎么解?
问题描述:
特征方程怎么解?举个例子,x︿3-6x︿2+11x-6=0怎么解?
答
x^3-6x^2+11x-6=0
x^3-6x^2+9x+2x-6=0
x(x-3)^2+2(x-3)=0
(x-3)(x(x-3)+2)=0
(x-1)(x-2)(x-3)=0,x=1,2,3