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2014-08-11T16:35:55+03:00
2014-08-11T16:36:46+03:00


a/b=3-√5     a=(3-√5)·b             a²=(9-6√5+5)·b²=(14-6√5)·b²                                  a²+b²=b²(14-6√5+1)=(15-6√5)b²         a·b=(3-√5)·b²

(a²+b²)/ab=3(5-2√5)b²/(3-√5)b²=3