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3386| 5
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求 x,y 使√[(x^2+y^2)/2],(x+y)/2,√(xy),2xy/(x+y)皆为正整数且和为 66 |
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求 x,y 使√[(x^2+y^2)/2],(x+y)/2,√(xy),2xy/(x+y)皆为正整数且和为 66
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求 x,y 使√[(x^2+y^2)/2],(x+y)/2,√(xy),2xy/(x+y)皆为正整数且和为 66 | ||
求 x,y 使√[(x^2+y^2)/2],(x+y)/2,√(xy),2xy/(x+y)皆为正整数且和为 66
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