已知a>0,实数x,y,z满足x+y+z=a,x2+y2+z2=a2/2,求x的取值范围如图
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 21:11:51
![已知a>0,实数x,y,z满足x+y+z=a,x2+y2+z2=a2/2,求x的取值范围如图](/uploads/image/z/3736808-8-8.jpg?t=%E5%B7%B2%E7%9F%A5a%3E0%2C%E5%AE%9E%E6%95%B0x%2Cy%2Cz%E6%BB%A1%E8%B6%B3x%2By%2Bz%3Da%2Cx2%2By2%2Bz2%3Da2%2F2%2C%E6%B1%82x%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E5%A6%82%E5%9B%BE)
已知a>0,实数x,y,z满足x+y+z=a,x2+y2+z2=a2/2,求x的取值范围如图
已知a>0,实数x,y,z满足x+y+z=a,x2+y2+z2=a2/2,求x的取值范围
如图
已知a>0,实数x,y,z满足x+y+z=a,x2+y2+z2=a2/2,求x的取值范围如图
由x+y+z=a得y+z=a-x;平方得y^2+z^2+2yz=x^2+a^2-2ax,x2+y2+z2=a2/2两式相减得
Yz=a^2/4+x^2-ax,则y、z为t^2-(a-x)t+( a^2+x^2-ax)=0两根,则Δ=( a-x)^2-4(a^2/4+x^2-ax)≥0整理得-3x^2+2ax≥0所以0≤x≤2/3a
0≤x≤2/3a
已知实数x,y,z满足关系式2x-3y-z=0,x-2y+z=0,求x比y比z的值
已知实数 x y z 满足x+y-z=0 ,3x-y+2z=0 则x :y :z
已知三个实数x,y,z满足条件(z-x)^2-4(x-y)(y-z)=0,求证:x,y,z成等差数列
已知,实数x,y,z满足x+y+z=0,xy+yz+zx=-3,求z的最大值
已知实数x,y,z满足2|x-y|+√2y+z+z2-z+1/4=0求x+y+z的值
已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值
已知实数x y z满足x/(x+1)=y/(y+2)=z/(z+3)=(x+y+z)/3,求x+y+z的值
已知实数X,Y,Z,满足X^2-2X+Y=Z-1,且X+Y^2+1=0,试比较X,Y,Z的大小.
x+y+z=a,x^2+y^2+z^2=1/2a^2,求x,y,z取值范围已知x,y,z均为实数,a>0,且满足x+y+z=a,x^2+y^2+z^2=1/2 a^2,求x,y,z的取值范围.
已知实数x,y,z满足:3x-y-3z=0和x-6y+6z=0(z≠0),则代数式x+y+z/x-y+z的值等于
已知实数x,y,z满足x+y+z=1,x^2+y^2+z^2=1/2求X,Y,Z∈{0,2/3},已知实数x,y,z满足x+y+z=1,x^2+y^2+z^2=1/2求证X,Y,Z∈{0,2/3},
已知实数x,y,z,满足那么x+y=6,z^2=xy-9,求(x+y)^z
已知x,y,z为正实数,满足x-y+2z=0,求y²/(xz)的最小值
当x+y+z不等于零,求(x+y)/z的值,并写出一组满足条件的x,y,z的数值.已知x,y,z为实数,x/(y+z)=y/(z+x)=z/(x+y).
已知实数X.Y.Z满足(Y+Z)分之X+(Z+X)分之Y+(X+Y)分之Z=1,则(Y+Z)分之X平方+(Z+X)分之Y平方+(X+Y)分之Z平方的值为( )
已知实数xyz满足|x-2y|+2√(2y+z)+z-2z+1=0,求x+y+z的值
已知实数x、y、z,满足x+y+z=7,
已知a>0,实数x,y,z满足x+y+z=a,x2+y2+z2=a2/2,求x的取值范围如图