当x,y满足什么时,矩阵A=(1 x 1 x 1 y 1 y 1 )与B=( 0 0 0 0 1 0 0 0 2)可以看
当x,y满足什么时,矩阵A=(1 x 1 x 1 y 1 y 1 )与B=( 0 0 0 0 1 0 0 0 2)可以看
已知x,y满足约束条件:x-y+1>=0,x+y-2>=0,x
x>1,y>0,且满足xy=x^y,x/y=x^3y,求x+y
实数x,y满足{x-y+1>=0;y+1>=0;x+y+1
若实数x,y满足x-y+1>=0,x+y>=0,x
若实数x,y满足x-y+1》=0,x+y>=0,x
证明:函数y=(1+2x)/x为当x趋向0时的无穷大,问x应满足什么条件使|y|〉10000
已知【x+y】/【2x+2y】=x+y/2x+2y=1/2 则x,y满足的条件是 A |x+y|>0 B m-3/m+1
若x,y满足|2x-y-3|+|3x+2y+1|=0,则x= y=
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
看实数x,y满足不等式组2x-y-1>=0,3x+y-9=0.则2x+y的最大值为?
已知x=a,y=b满足方程2x+y=0,求8a+4b-1