1 . 已知圆
:
和圆
:
,以动点
为圆心的圆与其中一个圆外切,与另一个圆内切.记动点
的轨迹为
.
(1)求轨迹
的方程;
(2)过
的直线交轨迹
于
,
两点,点
在直线
上.若
为以
为斜边的等腰直角三角形,求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d3340c8c78779f55f71046671368a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90beb743b21ceef511de338c563d74a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)求轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37bbde2076bfa6dd859f7787e155ab8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2023-10-15更新
|
458次组卷
|
4卷引用:河北省秦皇岛市昌黎第一中学2024届高三上学期第六次调研考试数学试题
河北省秦皇岛市昌黎第一中学2024届高三上学期第六次调研考试数学试题重庆市第一中学2023-2024学年高二上学期第一次月考数学试题(已下线)3.1.2 椭圆的几何性质(10大题型)-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)(已下线)3.1.2 椭圆的简单几何性质(10大题型)精讲-【题型分类归纳】2023-2024学年高二数学同步讲与练(人教A版2019选择性必修第一册)
2023高三·全国·专题练习
解题方法
2 . 已知数列
,数列
的前n项和为
,令
,
,求证:数列
的前n项和
满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643e98c64bb8cf0598a7fb769b861784.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aaee408bdec05bbdfcd4b841a331e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c24659de50918924c75dc060b29985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91377e5c1415c26615f19d68db5f0a2.png)
您最近一年使用:0次
名校
3 . 已知函数
,
,
是其导函数,恒有
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4138f6987cd2ee9e56b2ac80e84f9e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e11bf67f7206434ac5400168b0be73.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-09-10更新
|
677次组卷
|
11卷引用:河北省秦皇岛市青龙满族自治县第一中学2021届高三适应性考试数学试题
河北省秦皇岛市青龙满族自治县第一中学2021届高三适应性考试数学试题河南省焦作市博爱县第一中学2023-2024学年高三上学期8月月考数学试题河南省焦作市博爱县第一中学2023-2024学年高三上学期9月月考数学试题广东省珠海市华中师范大学珠海附属中学2024届高三上学期9月月考数学试题(已下线)考前题型猜猜猜(终极预测)-2021年高考数学解答题挑战满分专项训练(新高考地区专用)河南省鹤壁市高中2022-2023学年高二下学期7月月考数学试题河南省南阳市第一中学校2022-2023学年高二下学期7月月考数学试题山东省大联考2023-2024学年高二下学期3月月考数学试题江苏省苏州市昆山、太仓、苏州园三2020-2021学年高二下学期期中联考数学试题第六章 导数及其应用(能力提升)-2020-2021学年高二数学单元测试定心卷(人教B版2019选择性必修第三册)(已下线)第08讲 拓展四:构造函数法解决不等式问题-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第二册)
名校
解题方法
4 . 如图,在三棱锥
中,
,
,
,
为
的中点,点
是棱
上一动点,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/5/3/2971556730806272/2973106767036416/STEM/6a23df76-c75c-4356-94a4-f8d00530a460.png?resizew=219)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4957406b21df59fdf7fa184752287b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1082dd7e08556354aa7d4861d419e4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b4c1ae9c57d51e27bbdb001122d3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2022/5/3/2971556730806272/2973106767036416/STEM/6a23df76-c75c-4356-94a4-f8d00530a460.png?resizew=219)
A.三棱锥![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2022-05-05更新
|
1009次组卷
|
4卷引用:河北省秦皇岛市青龙满族自治县实验中学、第二中学等校2024届高三上学期10月联考数学试题
2021·全国·模拟预测
名校
解题方法
5 . 如图,四边形
中,
,
,
,
且
为锐角.
![](https://img.xkw.com/dksih/QBM/2021/12/29/2882962100731904/2883472789118976/STEM/8d6c099468254f1ab7b5d931a71cb564.png?resizew=139)
(1)求
;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e70a1db3825a701ae8f56eba85e701e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44315d3429e4d76842ecfc14f1ca949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://img.xkw.com/dksih/QBM/2021/12/29/2882962100731904/2883472789118976/STEM/8d6c099468254f1ab7b5d931a71cb564.png?resizew=139)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
您最近一年使用:0次
2021-12-30更新
|
3285次组卷
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8卷引用:河北省秦皇岛市昌黎第一中学2024届高三上学期第六次调研考试数学试题
河北省秦皇岛市昌黎第一中学2024届高三上学期第六次调研考试数学试题(已下线)2022届高三普通高等学校招生全国统一考试数学信息卷(六)(已下线)解密08 正、余弦定理及解三角形(分层训练)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(全国通用)(已下线)重难点03 四种三角函数与解三角形数学思想(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)江苏省南京市第一中学2023届高三四模数学试题(已下线)拓展三:三角形面积(定值,最值,范围)问题(精讲)-【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)重庆市乌江新高考协作体2022-2023学年高一下学期期末数学试题山东省青岛市青岛第九中学2022-2023学年高一下学期期末数学试题
名校
6 . 已知椭圆
的左右焦点分别为
,过右焦点
的直线l与椭圆交于A,B两点(A点在第一象限),则
的周长为_______ ;当
,直线l的斜率为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c6fa671fcb662cc937da87cf1550a3.png)
您最近一年使用:0次
2021-10-16更新
|
739次组卷
|
5卷引用:河北省秦皇岛市青龙县部分学校2024届高三上学期12月联考数学试题
名校
解题方法
7 . 已知函数
,
.
(1)求
的极值点;
(2)若
,证明:对任意
,
且
,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ffa98f0bd13da8c8d6ad6d25b6d031d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e3976e4cec624ff13a97d6ceee6ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08f876004776aa87cae0385fad8d0370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87845ea020740955bbe47a7723de9382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940f20602b20978bf8a0ff50cb5eee82.png)
您最近一年使用:0次
2021-05-08更新
|
677次组卷
|
3卷引用:河北省秦皇岛市青龙满族自治县第一中学2021届高三适应性考试数学试题
河北省秦皇岛市青龙满族自治县第一中学2021届高三适应性考试数学试题辽宁省大连市2021届高三一模数学试题(已下线)考前题型猜猜猜(终极预测)-2021年高考数学解答题挑战满分专项训练(新高考地区专用)
解题方法
8 . 已知实数a,b,c,d满足
,则
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccbd62418ccd965274923b674519b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e159c8203722a3c50784f7f6e65911e2.png)
您最近一年使用:0次
2021-04-16更新
|
315次组卷
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2卷引用:河北省秦皇岛市青龙满族自治县实验中学、第二中学等校2024届高三上学期10月联考数学试题
9 . 已知函数
,对任意
,都有
.
(1)求实数m的取值范围;
(2)若当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bc536a44423c076258f0bf272981f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(1)求实数m的取值范围;
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d477ef72d955b40bb143f2a0e47c5a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2020-07-04更新
|
230次组卷
|
2卷引用:河北省秦皇岛市青龙县部分学校2024届高三上学期12月联考数学试题
名校
解题方法
10 . 已知数列
的通项公式是
,在
和
之间插入1个数
,使
,
,
成等差数列;在
和
之间插入2个数
,
,使
,
,
,
成等差数列;…;在
和
之间插入n个数
,
,…,
,使
,
,
,…,
,
成等差数列.这样得到新数列
:
,
,
,
,
,
,
,
,
,
,….记数列
的前n项和为
,有下列判断:①
;②
;③
;④
.其中正确的判断序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4b5779873cb3f4366dbfdb983dec81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bcd5c11234a01e2b3d2861e9b3a3aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bcd5c11234a01e2b3d2861e9b3a3aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](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/a65cdaa89ae90492504808aba2737fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5733622aabd5a8af1ba76716c86b705a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65cdaa89ae90492504808aba2737fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5733622aabd5a8af1ba76716c86b705a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e5cbc4ff3ff76f59867618361b8a2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa76cf9b7e61f025a614dfea37880500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248cbe7c32c92eacf3668e347f07db0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e5cbc4ff3ff76f59867618361b8a2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa76cf9b7e61f025a614dfea37880500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248cbe7c32c92eacf3668e347f07db0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bcd5c11234a01e2b3d2861e9b3a3aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65cdaa89ae90492504808aba2737fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5733622aabd5a8af1ba76716c86b705a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c062d657b4f46adef709cca67d57e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a4a440aeda69e21034fdc32516094e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522be4644a91c3ae9f92e4f787a1e959.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
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