若x-3y=0,且x≠0,2x+5y/3x-y的直是?
问题描述:
若x-3y=0,且x≠0,2x+5y/3x-y的直是?
答
11/8
答
8/11
答
∵x-3y=0,∴x=3y
∴(2x+5y)/(3x-y)=(6y+5y)/(9y-y)=(11y)/(8y)=11/8