x/2=y/3=z/5
x:y:z=2:3:5
(2x+3y-z)/(3x-2y+z)=(2*2+3*3-5*1)/(3*2-2*3+5)=8/5
已知x/2=y/3=z/5,求分式2x+3y-z/3x-2y+z
已知x/2=y/3=z/5,求分式2x+3y-z/3x-2y+z
数学人气:975 ℃时间:2019-10-11 21:02:30
优质解答
我来回答
类似推荐
猜你喜欢
- 1偶数除以偶数等于偶数还是奇数
- 2已知x,y都是实数,且y=根号x-2+根号2-x再加4,求y的x次方的平方根
- 31.Ever since Dolly,the sheep ___in 1997,many scientists have been working on cloning a human being.
- 4解分式方程:X平方-12/X平方-2X=2X-1
- 5单项填空.Yesterday_8-year-oldfellintotheriver._boywas
- 6已知f(x)=(2x+1)/(x+a),【x≠-a,a≠1/2】,求函数f(x)的反函数;若f(x)=f-¹(x),求a的值
- 7希腊、罗马与欧洲古典文明 早期爱琴文明与城邦国家
- 8三棱锥P-ABC的三条侧棱长相等,则顶点在底面上的射影是底面三角形的( )
- 9)39.— Is there a football?— Yes,there is _____
- 10I don't Iike grapes.They'sour.