数列{An}{Bn}满足下列条件:A1=0,A2=1,An+2=An+An+1/2,Bn=An+1-An1.求证{Bn}是等比数列 2.求{Bn}的通项公式
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![数列{An}{Bn}满足下列条件:A1=0,A2=1,An+2=An+An+1/2,Bn=An+1-An1.求证{Bn}是等比数列 2.求{Bn}的通项公式](/uploads/image/z/2682305-17-5.jpg?t=%E6%95%B0%E5%88%97%7BAn%7D%7BBn%7D%E6%BB%A1%E8%B6%B3%E4%B8%8B%E5%88%97%E6%9D%A1%E4%BB%B6%EF%BC%9AA1%3D0%2CA2%3D1%2CAn%2B2%3DAn%2BAn%2B1%2F2%2CBn%3DAn%2B1-An1.%E6%B1%82%E8%AF%81%7BBn%7D%E6%98%AF%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97+2.%E6%B1%82%7BBn%7D%E7%9A%84%E9%80%9A%E9%A1%B9%E5%85%AC%E5%BC%8F)
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