1 . 已知
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7183d0b90c83baf20de399ca0f3b4fe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc77736082d40a73a6738e0ac815766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f045fddc2f02557913c502433327847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
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2 . 若数列{
}的前n项和为
,则
=______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee3e1619fc8f1dd4593039256c55596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/010a9ae3c4c9d3d0a2ad40ce15e98dba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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3 . 函数
的振幅是________ ,初相是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d755628409f67b034b75a0a4555337.png)
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解题方法
4 . 若数列
满足
,则称数列
为牛顿数列.如果
,数列
为牛顿数列,设
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dad5a12f34bed0da0de93beae0eaa4.png)
__________ ;数列
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2778e2dadff4d91102e6046bb5def8.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33610d2a46105e3c8456257221d3d07b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16732e791fdfc3e956d7cfad8c43e26d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a0034362ed50f1f7ebe31b688388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dad5a12f34bed0da0de93beae0eaa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2778e2dadff4d91102e6046bb5def8.png)
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2022-11-22更新
|
404次组卷
|
5卷引用:黑龙江省佳木斯市第八中学2023届高三下学期开学考试数学试题
黑龙江省佳木斯市第八中学2023届高三下学期开学考试数学试题山东省滨州市邹平市第一中学2022-2023学年高三上学期期中考试数学试题山东省淄博市张店区2022-2023学年高三上学期期中数学试题山东省济南市2022-2023学年高三上学期期中数学试题(已下线)山东省济南市2022-2023学年高三上学期期中数学试题变式题15-18
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5 . 已知某班男女同学人数之比为5:4,该班所有同学进行踢毽子比赛,比赛规则如下:每个同学用脚踢起毽子,在毽子落地前用脚接住并踢起,脚没有接到毽子则比赛结束.现记录了每个同学用脚踢起毽子开始到毽子落地,脚踢到毽子的次数,已知男同学用脚踢到毽子次数的平均数为21,方差为17,女同学用脚踢到毽子次数的平均数为12,方差为17,那么全班同学用脚踢到毽子次数的平均数为______ ,方差为______ .
您最近一年使用:0次
2022-05-17更新
|
443次组卷
|
3卷引用:黑龙江省佳木斯市第一中学2021-2022学年高一下学期期中数学试题
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6 . 已知点A,B,C,D在同一个球的上,
,
,
,则过
三点的截面圆的半径为________ ;若四面体
体积的最大值为4,则这个球的表面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/077c956ac0eb05cf120e14f17413dfa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4020513c097ba34df4b42e297f892cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
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7 . 已知函数
,若存在实数
使得
,则
的取值范围是___________ ;若
,则
的最大值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae53a7bac4c0efc58f49ce8963d2033d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581e1fd6cef0f01367251c3f323085b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e8b230513c1934f2c29bb19b54d4c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfa99136d0bb3533d85d1cb9a308ad4.png)
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2022-01-04更新
|
996次组卷
|
4卷引用:黑龙江省佳木斯市第十二中学2021-2022学年高二下学期期末考试数学试题
黑龙江省佳木斯市第十二中学2021-2022学年高二下学期期末考试数学试题黑龙江省哈尔滨市第三中学2021-2022学年高三第四次验收考试数学(理科)试题(已下线)专题3-4 超难压轴小题:导数和函数归类(1)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)专题5 指数对数同构问题(过关集训)(压轴题大全)
8 . 已知数列
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
__________ ;若数列
的前
项和为
,对任意
恒成立,则整数
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fe8ad544b7711df97c4681af67c7d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41cf1da18d91f7c98086553d157d1a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a571c9176ce9321512118f7ba3cb18a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
9 . 已知
,
夹角为120°,
,
.
与
夹角为150°,如图所示位置
,若
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0719844e0261af3b625d9673e5926.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d5b3355ee9ba032587b89203adff55c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6b282bb21a9767162b6e18e15ef87c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0719844e0261af3b625d9673e5926.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/5e863d44-246c-4e2a-b057-039b6ddc544a.png?resizew=165)
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10 . 已知函数
奇函数,当
时,
,则
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
______ ,若
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/052c32cb4cc1ad26d0e7b42b1256492e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d6dd8ae16ffcba53264d187a484aa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3599646d7d09fe1ecfffe3c968242e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2021-09-07更新
|
344次组卷
|
3卷引用:黑龙江省佳木斯市桦南县第一中学2022-2023学年高一上学期期中数学试题