等差数列与等比数列的综合问题,设等差数列{an}的前n项和为Sn,公比是整数的等比数列{bn}的前n项和为Tn,已知a1=1,b1=3,a2+b2=8,T3-S3=15(1) 求{an}和{bn}的通项公式(2)若数列{cn}满足a1cn+a2c(n-1)+a3c(n-2)+a4c(n-
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![等差数列与等比数列的综合问题,设等差数列{an}的前n项和为Sn,公比是整数的等比数列{bn}的前n项和为Tn,已知a1=1,b1=3,a2+b2=8,T3-S3=15(1) 求{an}和{bn}的通项公式(2)若数列{cn}满足a1cn+a2c(n-1)+a3c(n-2)+a4c(n-](/uploads/image/z/7279160-32-0.jpg?t=%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%E4%B8%8E%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97%E7%9A%84%E7%BB%BC%E5%90%88%E9%97%AE%E9%A2%98%2C%E8%AE%BE%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%7Ban%7D%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8C%E4%B8%BASn%2C%E5%85%AC%E6%AF%94%E6%98%AF%E6%95%B4%E6%95%B0%E7%9A%84%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97%7Bbn%7D%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8C%E4%B8%BATn%2C%E5%B7%B2%E7%9F%A5a1%3D1%2Cb1%3D3%2Ca2%2Bb2%3D8%2CT3-S3%3D15%281%29+%E6%B1%82%7Ban%7D%E5%92%8C%7Bbn%7D%E7%9A%84%E9%80%9A%E9%A1%B9%E5%85%AC%E5%BC%8F%282%29%E8%8B%A5%E6%95%B0%E5%88%97%7Bcn%7D%E6%BB%A1%E8%B6%B3a1cn%2Ba2c%28n-1%29%2Ba3c%28n-2%29%2Ba4c%28n-)
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