若x方+y方-10x-2y+26=0.则1/根号x+y的值是?我算出来也是根号6/6,可是答案是根号5-1/4……

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若x方+y方-10x-2y+26=0.则1/根号x+y的值是?我算出来也是根号6/6,可是答案是根号5-1/4……
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若x方+y方-10x-2y+26=0.则1/根号x+y的值是?我算出来也是根号6/6,可是答案是根号5-1/4……
若x方+y方-10x-2y+26=0.则1/根号x+y的值是?
我算出来也是根号6/6,可是答案是根号5-1/4……

若x方+y方-10x-2y+26=0.则1/根号x+y的值是?我算出来也是根号6/6,可是答案是根号5-1/4……
x方+y方-10x-2y+26=0
(x-5)^2+(y-1)^2=0
x=5
y=1
1/根号x+y
=根号6/6

配方得(X-5)方+(Y-1)方=0
X=5,Y=1
1/根号x+y
=根号6/6

x方+y方-10x-2y+26=0

(x方-10x+25)+(y方-2y+1)=0

(x-5)方+(y-1)方=0

x=5   y=1

1/根号x+y=√6/6

x方+y方-10x-2y+26=0
(x-5)^2+(y-1)^2=0
x=5
y=1
1/根号x+y
=根号6/6
答案错了