设各项均为正数的数列{An}满足A1=2,An=Aˇ〔3/2〕n+1*An+21.若A2=1/4 求A3 A4 以及猜想A2008 需要证明2.记Bn=A1A2...An[N=正整数] 若Bn≥2√2对n≥恒成立 求A2的值级数列{Bn}的通项公式以上n+1和n+2为脚码 n≥2
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![设各项均为正数的数列{An}满足A1=2,An=Aˇ〔3/2〕n+1*An+21.若A2=1/4 求A3 A4 以及猜想A2008 需要证明2.记Bn=A1A2...An[N=正整数] 若Bn≥2√2对n≥恒成立 求A2的值级数列{Bn}的通项公式以上n+1和n+2为脚码 n≥2](/uploads/image/z/2729346-42-6.jpg?t=%E8%AE%BE%E5%90%84%E9%A1%B9%E5%9D%87%E4%B8%BA%E6%AD%A3%E6%95%B0%E7%9A%84%E6%95%B0%E5%88%97%7BAn%7D%E6%BB%A1%E8%B6%B3A1%3D2%2CAn%3DA%CB%87%E3%80%943%2F2%E3%80%95n%2B1%2AAn%2B21.%E8%8B%A5A2%3D1%2F4+%E6%B1%82A3+A4+%E4%BB%A5%E5%8F%8A%E7%8C%9C%E6%83%B3A2008+%E9%9C%80%E8%A6%81%E8%AF%81%E6%98%8E2.%E8%AE%B0Bn%3DA1A2...An%5BN%3D%E6%AD%A3%E6%95%B4%E6%95%B0%5D+%E8%8B%A5Bn%E2%89%A52%E2%88%9A2%E5%AF%B9n%E2%89%A5%E6%81%92%E6%88%90%E7%AB%8B+%E6%B1%82A2%E7%9A%84%E5%80%BC%E7%BA%A7%E6%95%B0%E5%88%97%7BBn%7D%E7%9A%84%E9%80%9A%E9%A1%B9%E5%85%AC%E5%BC%8F%E4%BB%A5%E4%B8%8An%2B1%E5%92%8Cn%2B2%E4%B8%BA%E8%84%9A%E7%A0%81+n%E2%89%A52)
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