已知数列{an}的前n项和Sn满足:Sn=a/a-1(an-1)(a为常数,且a不等于0,a不等于1).求数列{an}的已知数列{an}的前n项和Sn满足:Sn=a/a-1(an-1)(a为常数,且a不等于0,a不等于1).(1)求数列{an}

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