1.求y=x*2-x+1/x*2+x+1的值域2.y=x*2+2x+2/x+13.已知x.y∈R且2x*2+2y*2=6x求x*2+y*2的取值范围?4.y=x/√(x*2+1)回答出任何一道就非常感谢!但是要在今天下午两点之前回答完哦~1.求y=(x*2-x+1)/(x*2+x+1)的值域
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/24 22:35:27
![1.求y=x*2-x+1/x*2+x+1的值域2.y=x*2+2x+2/x+13.已知x.y∈R且2x*2+2y*2=6x求x*2+y*2的取值范围?4.y=x/√(x*2+1)回答出任何一道就非常感谢!但是要在今天下午两点之前回答完哦~1.求y=(x*2-x+1)/(x*2+x+1)的值域](/uploads/image/z/13703915-11-5.jpg?t=1.%E6%B1%82y%3Dx%2A2-x%2B1%2Fx%2A2%2Bx%2B1%E7%9A%84%E5%80%BC%E5%9F%9F2.y%3Dx%2A2%2B2x%2B2%2Fx%2B13.%E5%B7%B2%E7%9F%A5x.y%E2%88%88R%E4%B8%942x%2A2%2B2y%2A2%3D6x%E6%B1%82x%2A2%2By%2A2%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%3F4.y%3Dx%2F%E2%88%9A%28x%2A2%2B1%EF%BC%89%E5%9B%9E%E7%AD%94%E5%87%BA%E4%BB%BB%E4%BD%95%E4%B8%80%E9%81%93%E5%B0%B1%E9%9D%9E%E5%B8%B8%E6%84%9F%E8%B0%A2%21%E4%BD%86%E6%98%AF%E8%A6%81%E5%9C%A8%E4%BB%8A%E5%A4%A9%E4%B8%8B%E5%8D%88%E4%B8%A4%E7%82%B9%E4%B9%8B%E5%89%8D%E5%9B%9E%E7%AD%94%E5%AE%8C%E5%93%A6%7E1.%E6%B1%82y%3D%EF%BC%88x%2A2-x%2B1%EF%BC%89%2F%EF%BC%88x%2A2%2Bx%2B1%EF%BC%89%E7%9A%84%E5%80%BC%E5%9F%9F)
1.求y=x*2-x+1/x*2+x+1的值域2.y=x*2+2x+2/x+13.已知x.y∈R且2x*2+2y*2=6x求x*2+y*2的取值范围?4.y=x/√(x*2+1)回答出任何一道就非常感谢!但是要在今天下午两点之前回答完哦~1.求y=(x*2-x+1)/(x*2+x+1)的值域
1.求y=x*2-x+1/x*2+x+1的值域
2.y=x*2+2x+2/x+1
3.已知x.y∈R且2x*2+2y*2=6x求x*2+y*2的取值范围?
4.y=x/√(x*2+1)
回答出任何一道就非常感谢!但是要在今天下午两点之前回答完哦~
1.求y=(x*2-x+1)/(x*2+x+1)的值域
2.y=(x*2+2x+2)/(x+1)
1.求y=x*2-x+1/x*2+x+1的值域2.y=x*2+2x+2/x+13.已知x.y∈R且2x*2+2y*2=6x求x*2+y*2的取值范围?4.y=x/√(x*2+1)回答出任何一道就非常感谢!但是要在今天下午两点之前回答完哦~1.求y=(x*2-x+1)/(x*2+x+1)的值域
1.y=(x^2-x+1)/(x^2+x+1)=1-2x/(x^2+x+1)=1-2/(x+1+1/x)
当x/=0时,x+1/x>=2或=2时,得1>y>=1/3,
x+1/x
不懂
y=(2x*x-2x+3)/(x*x-x+1),求值域?
1.(x-2y)(x+2y)-(x平方+y)(x平方-y) 2.(2x-y)(y+2x)-(2y+x)(2y-x)3.已知:x+y=6,x平方-y平方=48,求x,y的值4.x平方-2x分之x+2 -- x平方-4x+4分之x-1
已知x+y=a,2x-y=-2a,求[(x/y-y/x)/(x+y)-x(1/x-1/y)]/[(x+1)/y]的值
若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值
x+y=1,xy=-1/2,求x(x+y)(x-y)-x(x+y)2
y=x^x的导函数是:y'=x^x(Inx+1)我知道怎样求.但为什么不可以这样求.y=x^x=x*x*x*x*x*x*...*x(x个x) 则y'=(x')*x^(x-1)+x*(x')*x^(x-2)+.=x^x
求值域 1,y=(x+2)/(x*x+3x+6) 2,y=3x/(x*x+4)
x+2y=2x+y+1=7x-y 求:2x-y?
(x-y)/(x+y)=3求( 3x-2y-1)/(x+y-5)
若x*x+y*y=x+y-1/2,求x,y的值如题
求y =2^x -1/x+1在x
求反函数y=x^2-2x,x>1
求y=(5x-1)/(4x+2) (x
y=x*x-2x+1求导数
y=(X+1)(X+2)(X+3)求导数
y=x+1/x(x>2)值域怎么求
{(x+y)/2+(x-y)/3=1,(x+y)-5(x-y)=2.求x=?,y=?
1.求y=(4x^+8x+13)/(6x+6)的最小值2.求函数y=(x^2-x)/(x^2-x+1)的最小值