求(x1)=x2x1AD=ABBD=ABBC/2D所以|x|=0,|y-2/1|=0x(x-4)(x

Question

求(x 1)=x2x 1AD=AB BD=AB BC/2
D所以|x|=0,|y-2/1|=0x(x-4)(x<0)

Answer 1

m^3-m^2 m/m-1A= 则s,t属于A,t不等于0比如m2-2m 1-4m<0比如m^3-m^2 m/m-1