职教组卷基于海量职教高考试题库建立的在线组卷及学习系统
职教组卷
  • 题型:解答题 题类:模拟题 难易度:较易

    已知\(\{a_{n}\}\)为等差数列,\(\{b_{n}\}\)为等比数列,且满足\(a_{1}=1\),\(b_{1}=2\),\(a_{4}=4(a_{3}-a_{2})\),\(b_{4}=4(b_{3}-b_{2}).\)
    \((1)\)求\(\{a_{n}\}\)和\(\{b_{n}\}\)的通项公式;
    \((2)\)对任意的正整数\(n\),设\(c_{n}=a_{n}b_{n}\),求数列\(\{c_{n}\}\)的前\(n\)项和\(S_{n}.\)
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