设x,y满足约束条件{x>=0,y>=0,x/3a+y/4a<=1,若z=(x+2y+3)/(x+1)的最小值是1.5,则a的值是多少
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/11 17:45:07
![设x,y满足约束条件{x>=0,y>=0,x/3a+y/4a<=1,若z=(x+2y+3)/(x+1)的最小值是1.5,则a的值是多少](/uploads/image/z/12875357-29-7.jpg?t=%E8%AE%BEx%2Cy%E6%BB%A1%E8%B6%B3%E7%BA%A6%E6%9D%9F%E6%9D%A1%E4%BB%B6%EF%BD%9Bx%EF%BC%9E%3D0%2Cy%EF%BC%9E%3D0%2Cx%2F3a%2By%2F4a%EF%BC%9C%3D1%2C%E8%8B%A5z%3D%EF%BC%88x%2B2y%2B3%EF%BC%89%2F%28x%2B1%29%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E6%98%AF1.5%2C%E5%88%99a%E7%9A%84%E5%80%BC%E6%98%AF%E5%A4%9A%E5%B0%91)
xQN@~Ros7| CVm"hllZzO4ed<+8Kkw&7e&EGl,2yĩ[RMё&OBQISڱEe7OaMXw=
LRg2mN?o] ć㱎B'Cu
^ygMcroMA
^
٢uX,?h_}e!$ad~:xW}s!xEZ66J ͝afyIyj__
设x,y满足约束条件{x>=0,y>=0,x/3a+y/4a<=1,若z=(x+2y+3)/(x+1)的最小值是1.5,则a的值是多少
设x,y满足约束条件{x>=0,y>=0,x/3a+y/4a<=1,若z=(x+2y+3)/(x+1)的最小值是1.5,则a的值是多少
设x,y满足约束条件{x>=0,y>=0,x/3a+y/4a<=1,若z=(x+2y+3)/(x+1)的最小值是1.5,则a的值是多少
由题意得:当Z=1.5的时候是满足条件的最小值
所以,1.5=(x+2y+3)/(x+1) 可以画出图像.(与X轴交点为(3,0),与Y轴交点为(0,-3、4))
又因为 x>=0,y>=0
所以 简化x/3a+y/4a<=1 后可得,y
设x,y满足约束条件x>=0 x>=y 2x-y
设x,y满足约束条件{x>=0,y>=x,4x+3y
设x,y满足约束条件x>=0 y>=x 4x+3y
设变量X,Y满足约束条件{X-Y+3>=0,X+Y>=0,-2
设变量x,y满足约束条件:x-y+3>=0 x+y>=0 -2
设X,Y满足约束条件X+Y
设x,y满足约束条件x+y>=1,x-y>=-1,2x-y
设x,y满足约束条件x+y>=1,x-y>=-1,2x-y
设实数x,y满足约束条件:x>=2;y>=x;2x+y
设变量x,y满足约束条件 {x-y≥0,x+y≤1,x+2y≥0},则函数Z=2x+y 的最大值?
设变量x,y满足约束条件 {x-y≥0,x+y≤1,x+2y≥0},则函数Z=2x+y 的最大值?
已知x,y满足约束条件x-y+5>=0 x+y>=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满足约束条件x-y+5>=0 x+y>=0 X
当实数x,y,满足约束条件{x>0 y>=x 2x+y+k
设x,y满足约束条件y≥0,x≥y,x+y≤1,则z=2x+y的最大值是
设x,y满足约束条件x+y>=a,x-y
设x y 满足约束条件 x≤0 x≤y 2x-y+1≥0 则z=3x+2y的最大值