2^x-1=a ,2^y-1=b.则2^x+y= 是2^(x-1)=a.2^(y-1)=b.则2^(x+y)=
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 19:03:10
2^x-1=a,2^y-1=b.则2^x+y=是2^(x-1)=a.2^(y-1)=b.则2^(x+y)=2^x-1=a,2^y-1=b.则2^x+y=是2^(x-1)=a.2^(y-1)=b.则2^
2^x-1=a ,2^y-1=b.则2^x+y= 是2^(x-1)=a.2^(y-1)=b.则2^(x+y)=
2^x-1=a ,2^y-1=b.则2^x+y=
是2^(x-1)=a.2^(y-1)=b.则2^(x+y)=
2^x-1=a ,2^y-1=b.则2^x+y= 是2^(x-1)=a.2^(y-1)=b.则2^(x+y)=
2^(x+y)=2^x*2^y=2^(x-1)*2^(y-1)*2*2=4ab
2^x=1+a,2^y=1+b
2^(x+y)=(2^x)*(2^y)=(1+a)(1+b)
2^x-1=a得2^x=a+1,2^y-1=b得2^y=b+1
2^x+y=2^x*2^y=(a+1)*(b+1)
y=log2(b+1)
2^x=a+1
2^x+y=a+1+log2(b+1)
集合A={(x,y)|x-2y=1}B={(x,y)|x+3y=6},则A∩B= A∪B=?
向量a,b,x,y满足关系:a=y-x,b=2x-y,|a|=|b|=1,a*b=0,则|x|+|y|等于多少向量a,b,x,y满足关系:a=y-x,b=2x-y,|a|=|b|=1,a*b=0,则|x|+|y|等于多少
【高一数学】已知集合A={(x,y)|y=2x+1},B={(x,y)|y=x+3},a∈A,且a∈B,则a为__已知集合A={(x,y)|y=2x+1},B={(x,y)|y=x+3},a∈A,且a∈B,则a为__
已知x属于R,y>0,集合A={x|x*x+x+1,-x,-x-1},集合B={-y,-y/2,y+1}若A=B,则x*x+y*y的值为
A={(X,Y)|X+Y>=1},B={(X,y)|X^2+y^2=1},B={(X,y)|X^2+y^2
填空:(b-a)(2x-y+1)=(a-b)( )
集合A={x|y=x^1/2},B={y|y=log2x},则A∩B
集合A={y|y=log2x},B={y|y=(1/2)^x},则A∩B=?
若集合A={(x,y)|x^2+y^2=1} B={(x,y)|y^2=2(x+1)}则A交B=?
集合A={(x,y)丨2x=y=2},B={(x,y)丨x-2y=1}则A交B=
A={(x,y)|x^2+y^2=1}B={(x,y)|x+y=1}则A交B的元素个数为
已知集合A={y|y=1/2^x,x属于R},B={y|y=log2(x-1),x>1},则A∩B=
设A={(x,y)|2x+y=1}B={(x,y)|x-2y=3}则A∩B=
若集合A={y|y=2^x,x∈R},B={y|y=-x^2+1,x∈R},则A∩B=
已知6x^2-7xy-3y^2+14x+y+a=(2x-3y+b)(3x+y+1),则a=?,b=?
集合A={(x,y)|(y-3)/(x-1)=1},B={(x,y)|2x+3y-11=0},则A∩B=?
若A={(x.y)|2x+3y=1}.B={(x.y)|3x-2y=3}则A交B等于?
设A={(x,y)|3X+2y=4},B={(x,y)|2x+3y=1},则A交B等于多少