求圆(x+1)^2+(y-3)^2=24关于直线y=x对称的圆的方程做这类题有什么普遍方法(取点除外)?请用这道题做个例子解答.
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1、若x^2+y^2=5,xy=3,求(x+y)^2 (x-y)^2 2、x^+y^=5,x+y=6,求xy 3、若x+y=6,xy=3,求x^2+y^2 (x-y)^21、若x^2+y^2=5,xy=3,求(x+y)^2 (x-y)^22、x^+y^=5,x+y=6,求xy3、若x+y=6,xy=3,求x^2+y^2 (x-y)^24、a+b=5,a-b=3,求ab
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