若非零实数A和B满足4乘A的平方加B的平方=4AB则A除以B=?
若非零实数A和B满足4乘A的平方加B的平方=4AB则A除以B=?
数学人气：505 ℃时间：2019-08-22 14:39:09
优质解答
因为4A^2+B^2=4AB,即(2A-B)^2=0,所以2A-B=0,2A=B,所以A/B=1/2
我来回答
类似推荐
猜你喜欢
- 1Is the woman__walked past just now your teacher?Yes ,she teaches__English
- 23V开关电源接5WLED发光二极管要串多大限流电阻
- 3we will have a party .i'd like to i
- 4工程队修筑一条公路,已修好800米,是未修的5分之3,这条公路长多少米?
- 51000毫克等于多少克?
- 6情景模拟 初次见面说 好久不见说.
- 7Excuse me,could you look after my pet for a while?A.I'm sorry to hear that B.It's my pleasure
- 8以 那一次.我真的.为题800字作文
- 9急求英语小短文；小故事；小幽默!
- 10MY MOTHER WAS BUSY ALL DAY YESTERDAY的同义句 MY MOTHER had a（ ）（ ）yesterday