已知X,Y满足X^+Y^+5/4=2x+y,求X+Y分之XY的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 21:32:12
![已知X,Y满足X^+Y^+5/4=2x+y,求X+Y分之XY的值](/uploads/image/z/326626-34-6.jpg?t=%E5%B7%B2%E7%9F%A5X%2CY%E6%BB%A1%E8%B6%B3X%5E%2BY%5E%2B5%2F4%3D2x%2By%2C%E6%B1%82X%2BY%E5%88%86%E4%B9%8BXY%E7%9A%84%E5%80%BC)
x){}K#t"^b88mS}[
Jg"#v=|Vӆ=6IEh/!۾k<[~,C}cȋ募m
5Ԯӭ642!NTQkQkogk {dR!:@)<;k+b
已知X,Y满足X^+Y^+5/4=2x+y,求X+Y分之XY的值
已知X,Y满足X^+Y^+5/4=2x+y,求X+Y分之XY的值
已知X,Y满足X^+Y^+5/4=2x+y,求X+Y分之XY的值
答案:1/3
解法:x^-2x+1+y^-y+1/4=-5/4+1+1/4
即:(x-1)^+(y-1/2)^=0
所以:x=1,y=1/2