设数列{an}的前n项和为Sn,且Sn=4an-3(n=1,2……) (1)求a1,a2 (2)求通项公式an (3)若数列{bn}满足设数列{an}的前n项和为Sn,且Sn=4an-3(n=1,2……)(1)求a1,a2(2)求通项公式an(3)若是数列{bn}满足bn+1=an=bn
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![设数列{an}的前n项和为Sn,且Sn=4an-3(n=1,2……) (1)求a1,a2 (2)求通项公式an (3)若数列{bn}满足设数列{an}的前n项和为Sn,且Sn=4an-3(n=1,2……)(1)求a1,a2(2)求通项公式an(3)若是数列{bn}满足bn+1=an=bn](/uploads/image/z/1071916-52-6.jpg?t=%E8%AE%BE%E6%95%B0%E5%88%97%7Ban%7D%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8C%E4%B8%BASn%2C%E4%B8%94Sn%3D4an-3%28n%3D1%2C2%E2%80%A6%E2%80%A6%29+%281%29%E6%B1%82a1%2Ca2+%EF%BC%882%EF%BC%89%E6%B1%82%E9%80%9A%E9%A1%B9%E5%85%AC%E5%BC%8Fan+%EF%BC%883%EF%BC%89%E8%8B%A5%E6%95%B0%E5%88%97%7Bbn%7D%E6%BB%A1%E8%B6%B3%E8%AE%BE%E6%95%B0%E5%88%97%7Ban%7D%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8C%E4%B8%BASn%2C%E4%B8%94Sn%3D4an-3%28n%3D1%2C2%E2%80%A6%E2%80%A6%29%281%29%E6%B1%82a1%2Ca2%EF%BC%882%EF%BC%89%E6%B1%82%E9%80%9A%E9%A1%B9%E5%85%AC%E5%BC%8Fan%EF%BC%883%EF%BC%89%E8%8B%A5%E6%98%AF%E6%95%B0%E5%88%97%7Bbn%7D%E6%BB%A1%E8%B6%B3bn%2B1%3Dan%3Dbn)
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