实数xy满足1≤y≤x,且2x²-5x+4=y(x-1),则x+y的值为
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/23 09:44:26
实数xy满足1≤y≤x,且2x²-5x+4=y(x-1),则x+y的值为实数xy满足1≤y≤x,且2x²-5x+4=y(x-1),则x+y的值为实数xy满足1≤y≤x,且2x&su
实数xy满足1≤y≤x,且2x²-5x+4=y(x-1),则x+y的值为
实数xy满足1≤y≤x,且2x²-5x+4=y(x-1),则x+y的值为
实数xy满足1≤y≤x,且2x²-5x+4=y(x-1),则x+y的值为
1≤y=2x²-5x+4/(x-1)≤x,求解这个不等式,其中注意1≤x
可以发现(x-2)²≤0
x=2
当x=2时,带入2x²-5x+4=y(x-1),得出y=2
x+y=2+2=4
实数xy满足1≤y≤x,且2x²-5x+4=y(x-1),则x+y的值为
若实数x,y满足xy>0,且x²y=2,则xy+x²的最小值是?
若实数XY满足X+Y²=1,则2X²;+8Y²的最小值是
几何平均不等式6若实数x,y满足xy>0,且x²y=2,则xy+x²的最小值是?
已知x、y是实数,且适合方程(x²+xy-12)²+(xy-2y²-1)²=0 求x、y的值
已知x、y是实数,且适合方程(x²+xy-12)²+(xy-2y²-1)²=0.求x、y的值.
若实数X,Y满足约束条件:X+2Y-5≤0,X≥1,Y>0,X+2Y-3≥0,那么Z=X²+Y²/XY的最小值为
已知x,y∈R,满足(x²+y²+2)(x²+y²-1)-18≤0.求证:xy≤2
设函数f(x)对一切实数x,y满足f(xy)=xf(y)+yf(x)-xy且|f(x)-x|≤1,求函数f(x).
已知实数x、y满足5x²-3xy+1/2y²-2x+1/2y+1/4=0 求x、y的值
已知实数x、y满足5x²-3xy+1/2y²-2x+1/2y+1/4=0 求x、y的值
已知实数x,y满足x²+4xy+4y²-x-2y+1/4=0 ,则x+2y 的值为?
已知实数x、y满足x²+4xy+4y²-x-2y+4分之1=,则x+2y的值,
已知实数x,y满足x²+xy+y²=1,则x²-xy+y²的最大值是 ,最小值是
若x,y为实数,且满足y=√﹙xy-6﹚+√(6-xy)+5-x,则x²+y²=?
设实数x,y满足3≤xy²≤8,4≤x²/y≤9,则x³/y^4的最大值是?
已知实数x、y满足xy>0,且8/xy+1/x+1/y=1,
实数x,y,z 满足x²+y²+z²=1,则根号2xy+yz的最大值是多少