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2015年全国初中数学联合竞赛(初三年级)试题的压轴题为:已知实数a,b,c满足条件a/(b-c)~2+b/(c-a)~2+c/(a-b)~2=0,求代数式a/(b-c)+b/(c-a)+c/(a-b)的值.组委会给出的解答莫名其妙地给出一个等式:
The finale of the 2015 National Junior Middle School Math Joint Contest (Grade 3) is entitled: Known real numbers a, b, c satisfy the conditions a / bc ~ 2 + b / ca ~ 2 + c / ab ~ 2 = 0, find the algebraic formula a / (bc) + b / (ca) + c / (ab) of the value given by the organizing committee somehow give an equation: