已知实数x,y满足(x+y)^2=1,(x-y)^2=25,求x,y的值
已知实数x,y满足(x+y)^2=1,(x-y)^2=25,求x,y的值
已知实数x y满足x×x+y×y-xy+2x-y+1=0 试求x y的值
已知实数x,y 满足x^2+y^2=1,求(y-2)/(x+1)的取值范围
已知实数x,y满足x^2+y^2=1,求(y+2)/(x+1)的取值范围.
已知实数x,y满足(x2)+(y2)-xy+2x-y+1=0,求x,y的值
已知实数x、y满足X2+y2-xy+2x-y+1=0,试求x、y的值
已知实数x,y满足(x+y)平方=1,(x-y)平方=25,求x,y得值
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
已知实数x,y满足根号2x-y的值+5x-6=y-根号y-2x,求x,y的值
已知实数x,y满足方程x^2+y^2-4x-2y+1=0.求x^2+y^2+x+y的最大值和最小值.
已知实数x,y满足方程x*x+y*y-4x+1=0.求y-x的最大值
已知实数x,y满足x+y=1,x的平方+y的平方=2,求x的六次方+y的六次方的值.