a²+b²-10a+34-6b=0,求(a+b)/(a-b)的值
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a²+b²-10a+34-6b=0,求(a+b)/(a-b)的值
a²+b²-10a+34-6b=0,求(a+b)/(a-b)的值
a²+b²-10a+34-6b=0,求(a+b)/(a-b)的值
见图
(a-5)^2+(b-3)^2=0
解方程得a=5,b=3
a+b=8
a-b=2
(a+b)/(a-b)=4