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2001年全国初中数学联合竞赛试题中有一题: 若a·b≠1,且有5a2+2001a+9=0 ①及9b2+2001b+5=0 ②则a/b的值是( ).
In the 2001 National Junior Mathematics Contest, there was a question: If a·b≠1, and there are 5a2+2001a+9=0 1 and 9b2+2001b+5=0 2 then the value of a/b is ().