设a≠b,且数列a,x1,x2,b和a,y1,y2,y3,y4,b分别是等差数列,求x2-x1/y4-y1

问题描述:

设a≠b,且数列a,x1,x2,b和a,y1,y2,y3,y4,b分别是等差数列,求x2-x1/y4-y1

x2-x1=(b-a)/3
y4-y1=(b-a)/5
x2-x1 / y4-y1 =5/3