[(x²+y²)-(x-y)²+2y(x-y)]÷4y=1,求4x/4x²-y²-1/2x+y 的值 1个回答 #热议# 上班途中天气原因受伤算工伤吗? 数学新绿洲 2012-04-12 · 初中高中数学解题研习 数学新绿洲 采纳数:13056 获赞数:76574 向TA提问 私信TA 关注 展开全部 解析:由题意可知y≠0已知[(x²+y²)-(x-y)²+2y(x-y)]÷4y=1,那么:(x²+y²)-(x²-2xy+y²)+2xy-2y²=4y即4xy-2y²=4y两边同除以2y可得:2x-y=2所以:4x/(4x²-y²)-1/(2x+y)=[4x-(2x-y)]/(4x²-y²)=(2x+y)/(4x²-y²)=1/(2x-y)=1/2 本回答由提问者推荐 已赞过 已踩过< 你对这个回答的评价是? 评论 收起 推荐律师服务: 若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询 其他类似问题 2022-11-07 已知[(x²+y²)-(x-y)²+2y(x-y)]÷4y=1,求4x²-y? 2013-04-07 已知[(x²+y²)-(x-y)²+2y(x-y)]÷4y=1,求4x÷(4x²-y²)-1÷(2x+y)的值 5 2013-05-29 已知x-y=-2,求(x²+y²)²-4xy(x²+y²)+4x²y² 4 2012-11-18 5x²y-[2x²y-3(xy²-2x²y+2xy²)],其中x,y满足丨x-1丨+(y+2)²=0 3 2013-03-23 x²y²+x²+y²+1=4xy,求x,y的值 7 2013-01-09 已知:【(x²+y²)-(x-y)²+2y(x-y)】/4y=1,求4x/4x²-y²-1/2x+y 1 2013-05-23 【(X²+Y²)-(X-Y)²+2Y(X-Y)】/4Y=1,求4X/4X²-Y²-1/2X-Y的值 3 2013-11-10 已知[〔x²+y²〕-(x-y)²+2y(x-y)]÷4y=1求4x/4x²+y²-1/2x+y 3 为你推荐: