求值:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5111252bc5c9f9bbb4e94a0a67f0b1c6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5111252bc5c9f9bbb4e94a0a67f0b1c6.png)
19-20高二上·江苏苏州·期中 查看更多[2]
更新时间:2020-03-30 10:28:35
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填空题-单空题
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适中
(0.65)
名校
解题方法
【推荐1】数列
中,
表示与
最接近的整数,则满足
的正整数n的最小取值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38123d52b295071c2f6cfe5097ff8740.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8050b9b527f4a35a67129b049c857367.png)
您最近一年使用:0次
【推荐2】已知数列
满足,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd5367f5c88db960f534311d3476ef5.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde8131a2ebf84739796bb871431b303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd5367f5c88db960f534311d3476ef5.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】对于数列
,定义数列
为数列
的“差数列”,若
,
的“差数列”的通项公式为
,数列
的前
项和为
,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82c65a855b1eed9c43e6829f6c3bffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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您最近一年使用:0次
填空题-单空题
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适中
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名校
解题方法
【推荐2】已知数列
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,且
,若
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为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49877898104497d3f6f4a28c8160d1d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/562bf10d55724c77204c6953c7fbf7e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11257350f36416169dad24c4f0388645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
【推荐1】数列
的通项公式为
,其中
表示不超过x的最大整数,则
的前32项和为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4984c9b15bc0f2abae54fde0773fd046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
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适中
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【推荐2】已知等比数列{an}的前n项和
,则{an}的通项公式是____________ .
![](https://img.xkw.com/dksih/QBM/2015/12/17/1572369047756800/1572369053810688/STEM/7457d24a06d94ced9cdf606a843ee908.png?resizew=73)
您最近一年使用:0次