已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x.
已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x.
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
已知实数x、y满足x²+y²+4x-6y+13=0
已知实数xy,满足10x²-2xy+y²+6x+1=0,求x+y
已知实数x,y满足x²+y²+2x-2y=0,求x²+y²的最大值 x+y的最小
已知实数x,y,z满足x²-6xy+10y²+4y+|z²-3z+2|+4=0,求(x+y
已知x,y为实数,且满足2x²-6x+y²=0,求x²+y²+2x的最大值
已知实数X、Y满足X²+4y²+2x-4y+2=0 求X的2y次方+2x的值
已知实数x y满足x²+y²+2x-4y+1=0 求下列最大值和最小值,(1)y/x-4 (2)2x
已知实数x y满足x²+25+根号y+4=10x求x+y的立方根
已知实数x,y满足根号(x+3y-1)+y²+2y+1=0,求2x-y的平方根
已知实数x,y满足x²+y²-6x-4y+12=0,求x-y的最大值与最小值