优优班--学霸训练营 > 题目详情
  • 已知数列\(\{a_{n}\}\)是公差不为\(0\)的等差数列,\(a_{1}=1\),且\(a_{1}\),\(a_{2}\),\(a_{5}\)成等比数列,那么数列\(\{a_{n}\}\)的前\(10\)项和\(S_{10}\)等于\((\)  \()\)
    【考点】等差数列与等比数列的综合应用
    【分析】请登陆后查看
    【解答】请登陆后查看
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