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首页>高中数学综合库>数列>数列的概念与简单表示法>数列的通项公式>利用an与sn关系求通项或项
题型:填空题 难度:0.85 引用次数:63 更新时间:2020/3/26 11:11:46 题号:9868528
已知数列eqId93e38ecd74a24cb59da79181b95bfd3a的前eqIdf458db68122849abb588feb2e682d9ac项和为eqIddb5481de79c946c0a760143297d5eade,且满足eqId4a44404f4d9548f0b70addb5bb0c0168,则通项eqId38e7aab9632e418f8d07479b236353ec__________.

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【推荐1】eqIddb5481de79c946c0a760143297d5eade为数列|eqId93e38ecd74a24cb59da79181b95bfd3a的前n项和,若满足eqId77b3f6b9955e499dbdab033a38779496eqId75a7994a42e84025bb379516947fea87,则eqId9cf3535e10f14da398ef323261c4b96a=______.
更新:2019/10/06难度:0.85题型:填空题组卷:291
【推荐2】已知eqIddb5481de79c946c0a760143297d5eade为数列eqId93e38ecd74a24cb59da79181b95bfd3a的前eqIdf458db68122849abb588feb2e682d9ac项和,且eqId5564439a52a1406681304195a36f8425,则eqId38e7aab9632e418f8d07479b236353ec________.
更新:2020/05/21难度:0.85题型:填空题组卷:0
【推荐3】数列eqId93e38ecd74a24cb59da79181b95bfd3a的前eqIdf458db68122849abb588feb2e682d9ac项和为eqIddb5481de79c946c0a760143297d5eade,eqIdf515c855ace24e04a01b41101c439b85,则eqId38e7aab9632e418f8d07479b236353ec________
更新:2020/02/15难度:0.85题型:填空题组卷:69