省略乘号写出下面格式x*5*y = m+n*2 = y*y*3=
省略乘号写出式子m*5*n=?
省略乘号2x*y 3*x*x
已知2x+5y-3=0,求4的x方*32的y方 (*是乘号)
若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,
若全集I={(x,y)|x,y∈R},集合M={(x,y)|(y-3)/(x-2)},N{(x,y)|y=x=1},则(
若3x^m+1y^2与x^3y^n的积是单项式3x^5y^5则n^m+m^n=
设全集U={(x,y)|x,y属于R},集合M={(x,y)|(y-3)除以(x-2)=1},N={(x,y)|y不等于
集合M={X=3m+1,m∈N*},N={y/y=5n+2,n∈N*},则M∩N=?
已知y+m与x+n(m,n为常数)成正比例,且当x=3是,y=5,x=5时,y=11,试写出y关于x的函数解析式
已知Y+M与X+N(M,N为常数)成正比例,且当X=3时,Y=5;当X=5,Y=11,写出Y关于X的的函数解析式.
3x+4y=-5 5x+6y=-9 (n-8m)x-8y=10 5x+(10m+2n)y=-9 求m.m+n.n=?
若x^3m=4,y^3n=5,求(x^2m)^3+(y^n)^3—x^2m·y^n·x^4m·y^2n的值