名校
解题方法
1 . 已知正项数列
的前
项和为
,且
,
.
(1)求
,
的值,并写出数列
的通项公式;
(2)设
,数列
的前
项和为
,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6c38055650657efb3843be4b87efd81.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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f4686672b730463010e809e05a61a3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a945bfee2e474b618464551c0bc65f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.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/d6c38055650657efb3843be4b87efd81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67562676712ed19ff770738792ce6023.png)
您最近一年使用:0次
2020-11-04更新
|
1007次组卷
|
4卷引用:浙江省衢州市、湖州市、丽水市2020-2021学年高三上学期11月教学质量检测数学试题
浙江省衢州市、湖州市、丽水市2020-2021学年高三上学期11月教学质量检测数学试题(已下线)【新东方】【2020】【高三上】【期中】【HD-LP359】【数学】浙江省湖州市、衢州市、丽水市2020-2021学年高三上学期11月教学质量检测数学试题河南省郑州外国语学校2021-2022学年高二上学期期中考试理科数学试题
名校
2 . 如图,已知点
,
、
为抛物线上
不同的两点(
在
的右上方,
在直线
的下方),满足
.
![](https://img.xkw.com/dksih/QBM/2020/11/3/2584971638710272/2585617836023808/STEM/d0917742-bf13-434d-8e7d-614881c7e61e.png?resizew=203)
(1)证明:
的中点
位于某定直线上;
(2)记
内切圆、外接圆的半径分别为
、
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb7ce0ebe5340d3fb30e50ab560781a4.png)
![](https://img.xkw.com/dksih/QBM/2020/11/3/2584971638710272/2585617836023808/STEM/d0917742-bf13-434d-8e7d-614881c7e61e.png?resizew=203)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff3606c7bf728b4f539261461cde677.png)
您最近一年使用:0次
19-20高一·浙江杭州·期末
3 . 已知抛物线
的焦点为F,A为抛物线C上异于原点的任意一点,过点A的直线l交抛物线C于另一点B,交x轴的正半轴于D,且有
,当点A的横坐标为
时,△
为正三角形.
![](https://img.xkw.com/dksih/QBM/2020/11/3/2585105299791872/2585152151937024/STEM/f6f0ee845735471a8d90af7162ecb0fa.png?resizew=219)
(1)求抛物线C的方程;
(2)若直线
,且
和抛物线C有且只有一个公共点E,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d985a6326bae94867aa0fa132e896667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa3254460ecbacecb3e57c5dce227f4.png)
![](https://img.xkw.com/dksih/QBM/2020/11/3/2585105299791872/2585152151937024/STEM/f6f0ee845735471a8d90af7162ecb0fa.png?resizew=219)
(1)求抛物线C的方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88c9366bb209931c6b28353dbab9a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
您最近一年使用:0次
名校
解题方法
4 . 已知
,函数
.
(1)若
,求函数
的值域;
(2)若函数
在
上不 单调,求实数
的取值范围;
(3)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261c0899711077922ca479c99ffe2fef.png)
是函数
(
为实数)的其中两个零点,且
,求当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9fbbd9c88736e500f5251f97b08452.png)
变化时,
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b9147459942e3344e3fc1e98298cd6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aadc68ed399afd6db385dae5e963c97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261c0899711077922ca479c99ffe2fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4baf7df076c898fa079b0f9349b3821.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd16664b728b05f7e5597a390675420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9fbbd9c88736e500f5251f97b08452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数
.
(Ⅰ)若
恒成立,求实数a的最大值;
(Ⅱ)若
恒成立,求正整数a的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb0b55c269a8c20c465e4cb44ae95a6.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb6c9c69606bbf4f3e94275e0491703.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
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6 . 已知抛物线
的内接
满足直线
都是抛物线
的切线.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/c965b7bb-c17e-4aa0-9d77-20a69b635d28.png?resizew=169)
(Ⅰ)证明:
是抛物线
的切线;
(Ⅱ)已知G为
的重心,求
上的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/c965b7bb-c17e-4aa0-9d77-20a69b635d28.png?resizew=169)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
(Ⅱ)已知G为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa5fe243b7f7874c56c0410ce644b88e.png)
您最近一年使用:0次
名校
解题方法
7 . 若
,则
的最小值是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6ac85ab2971d2efb0eeab1704cda8f.png)
您最近一年使用:0次
解题方法
8 . 已知数列
满足
,且
.
(1)使用数学归纳法证明:
;
(2)证明:
;
(3)设数列
的前n项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb9e3283f5e7ff3891047dbf6ec8a0bf.png)
(1)使用数学归纳法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f24b27e759b080dad91770ea4f9622f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47cdceb963ccc930e89ece74e46bf1a2.png)
(3)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9469e27ed3e3a84e225ca5a75e9f6737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a310ec7a4d4d3a183d015ef02467c5.png)
您最近一年使用:0次
2020-10-27更新
|
340次组卷
|
4卷引用:【市级联考】浙江省湖州市2017-2018学年高一(下)期末数学试卷
【市级联考】浙江省湖州市2017-2018学年高一(下)期末数学试卷(已下线)专题6.6 数学归纳法(讲)- 浙江版《2020年高考一轮复习讲练测》(已下线)专题7.6 数学归纳法(讲)-2021年新高考数学一轮复习讲练测人教B版(2019) 选修第三册 一蹴而就 第五章 5.5数学归纳法
9 . 已知椭圆
的左焦点
,点
为椭圆C上一点,如图,经过圆
上一动点P作椭圆C的两条切线分别切于点A,B,切线分别与圆O相交于异于点P的点M,N.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/5c16e354-4238-46d9-9c27-07d167cfb51c.png?resizew=252)
(1)求椭圆C的方程;
(2)记
.
(i)证明:
;
(ii)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17618d8d22ebb3fd6835a7eb139b4f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972e310785333d1f608db89586ae837b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f62686f6f9118291c444a8d5a4d0f8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/5c16e354-4238-46d9-9c27-07d167cfb51c.png?resizew=252)
(1)求椭圆C的方程;
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195a75bd930d89560bd2974c23c255e1.png)
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467927b7e2860d6fedee32bdd0958adf.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60138017c5e26202533126213e4c80d5.png)
您最近一年使用:0次
10 . 已知数列{an}和{bn}满足a1=1,b1=0,4an+1=3an﹣bn+4,4bn+1=3bn﹣an﹣4.
(1)求{an}的通项公式;
(2)我们知道,对
的放缩,如
;
;
.若记{an}的前n项和为Sn,试证:
.
(1)求{an}的通项公式;
(2)我们知道,对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a2d7dcdedd090ff94ec953e0edb70e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e346a524694ab7d7d6548f3816fceed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa2076c8bcae12c3d8030270a25148b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655bfa9e4d0704d12429ca6677ca426b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1edd10812cac49bf4d07cc458789bb8c.png)
您最近一年使用:0次
2020-10-14更新
|
987次组卷
|
4卷引用:2020届浙江省杭州市第四中学高三上学期10月月考数学试题
2020届浙江省杭州市第四中学高三上学期10月月考数学试题(已下线)期末测试一(基础过关)-2020-2021学年高二数学单元测试定心卷(人教版必修5)(已下线)专题2.4+数列单元测试(基础卷)-2020-2021学年高二数学十分钟同步课堂专练(苏教版必修5)福建省莆田市2020-2021学年高二上学期数学期末考试数学试题