已知x.y满足(x-y+2>=0.x+y-4>=0.2x-y-5<=0),求Z=[x+2y-4]的最大值……补充:[]为绝对值符号…
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/19 00:20:49
已知x.y满足(x-y+2>=0.x+y-4>=0.2x-y-5<=0),求Z=[x+2y-4]的最大值……补充:[]为绝对值符号…
已知x.y满足(x-y+2>=0.x+y-4>=0.2x-y-5<=0),求Z=[x+2y-4]的最大值……补充:[]为绝对值符号…
已知x.y满足(x-y+2>=0.x+y-4>=0.2x-y-5<=0),求Z=[x+2y-4]的最大值……补充:[]为绝对值符号…
根据不等式组,可以求得 7≥x≥1,9≥y≥3
所以25≥x+2y≥7
所以,Z的最大值=21
已知x,y满足y
已知实数x,y满足x-y
已知实数X,Y满足{|x+y|
已知实数x.y满足(x+2)^2+y^2(
已知圆x,y满足x^2+y^2
已知x,y满足x+y-2>=0,2x-y+2>=0,x
已知x,y满足约束条件:x-y+1>=0,x+y-2>=0,x
已知x.y满足X2-y2=2xy.则x-y/x+y=?x.
已知实数x,y满足:y
已知实数x,y满足约束条件x+y>3,y
已知x.y满足(x-y+2>=0.x+y-4>=0.2x-y-5<=0),求Z=[x+2y-4]的最大值……补充:[]为绝对值符号…
已知实数x,y满足方程x^2+y^2-4x-2y+1=0.求x^2+y^2+x+y的最大值和最小值.
已知x,y满足{x>=1,x+y
已知x,y满足{x>=1,x+y
已知x和y满足x+3y+|3x-y|=19,2x+y=6,求x,y的值
已知实数x,y满足x²+√2 y=√3,y²+√2 x=√3,则x/y+y/x=?
已知实数X,Y满足2
已知实数xy满足x+2y