1 . 如图,已知双曲线
,过
向双曲线
作两条切线,切点分别为
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/ecb20051-2b91-4c97-9bd8-5800eec92b84.png?resizew=206)
(1)证明:直线
的方程为
.
(2)设
为双曲线
的左焦点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d750ac23802aa73c47a1528227207485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c9708ef0dc6d6f5dcf6596d3e4f6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a9d9d11c4aff0ff6def84811c07f06.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/ecb20051-2b91-4c97-9bd8-5800eec92b84.png?resizew=206)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e86c6aaaf80865f372891d92a2b7a5b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf2fee66accf33325bc1e2f940f8916.png)
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2022-01-24更新
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2647次组卷
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12卷引用:河北省邯郸市十校联考2022届高三上学期期末数学试题
河北省邯郸市十校联考2022届高三上学期期末数学试题河北省石家庄市行唐县2022届高三上学期期末数学试题河北省秦皇岛市青龙满族自治县实验中学2023届高三上学期期末数学试题广东省湛江市2021-2022学年高二上学期期末数学试题山东省部分学校联考(烟台市第二中学等校)2021-2022学年高三上学期阶段质量检测数学试题贵州省遵义市2021-2022学年高二上学期期末考试数学(理)试题青海省海东市2022届高考一模数学(理)试题(已下线)专题14 圆锥曲线切线方程 微点3 圆锥曲线切线方程综合训练(已下线)高二上学期期末【常考60题考点专练】(选修一+选修二)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)安徽省滁州市定远县民族中学2022-2023学年高二上学期期末数学试题(已下线)考点20 常用的二级结论的应用 2024届高考数学考点总动员(已下线)大招15直线夹角的计算方法
名校
2 . 已知
.
(1)证明:
是
上的增函数,
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcad1ae8162cc4aa091b39f03438a650.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ad5f58a13b221f61328edabfd30c140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946dccbf1011600189a1ccfa265f98eb.png)
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2021-12-28更新
|
618次组卷
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3卷引用:河北省金科大联考2022届高三上学期12月质量检测数学试题
河北省金科大联考2022届高三上学期12月质量检测数学试题(已下线)专题3-7 导数压轴大题归类:不等式证明归类(2)-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)安徽省桐城中学2021-2022学年高二下学期开学检测数学试卷
3 . 已知函数
(
).
(1)讨论
的单调性;
(2)若
,且正数
满足
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b6f40840728d2fc439ae9b800bb2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9069602f94146c0a951dc80fb988931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca343b5b784e342d00872c29e59f613d.png)
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2021-12-12更新
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5卷引用:河北省2022届高三上学期期中联考数学试题
河北省2022届高三上学期期中联考数学试题河北省邢台市“五岳联盟”部分重点学校2022届高三上学期期中数学试题河南省驻马店市2021-2022学年高三上学期阶段性检测(11月)理科数学试题内蒙古赤峰市红山区2021-2022学年高三上学期11月联考理科数学试题(已下线)专题3-2 含参讨论-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)
解题方法
4 . 已知函数
.
(1)若
,求
的极值;
(2)若
有且只有两个零点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22720ca847d14ec186673102e03a7032.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91acab685acb2be451b684f2751d2908.png)
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名校
解题方法
5 . 双曲线
经过点
,一条渐近线的倾斜角为
,直线l交双曲线于A、B.
(1)求双曲线C的方程;
(2)若l过双曲线的右焦点
,是否存在x轴上的点
,使得直线l绕点
无论怎样转动,都有
成立?若存在,求出M的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be3ad3dd6803d92df6ff8a80cd35095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
(1)求双曲线C的方程;
(2)若l过双曲线的右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8649ce18c628d0e03e72cef541f8284f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b31900fc31d9fb228818f8b59fc3bf.png)
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6 . 已知双曲线
:
与椭圆
有公共焦点,
的左、右焦点分别为
,
,且经过点
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80b861ba40387cb2bcd04945f5a371a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de6140983d54ff07307ec65bddd7320e.png)
A.双曲线![]() ![]() |
B.若直线![]() ![]() ![]() |
C.设![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.若动直线![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2021-11-06更新
|
3318次组卷
|
8卷引用:河北省九师联盟2021-2022学年高二上学期期中数学试题
7 . 已知圆
和点
.
(1)过
作圆
的切线,求切线的方程;
(2)过
作直线
交圆
于点
,
两个不同的点,且
不过圆心,再过点
,
分别作圆
的切线,两条切线交于点
,求证:点
在同一直线上,并求出该直线的方程;
(3)已知
,设
为满足方程
的任意一点,过点
向圆
引切线,切点为
,试探究:平面内是否存在一定点
,使得
为定值?若存在,请求出定点
的坐标,并指出相应的定值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7adf1aef1199f7271771d56a83ac6c38.png)
(1)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a76954886afb825382f5fdece6fcdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd7393128266223f2248f70eb9f8b127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fce564bd898ee14b70791f5fccbcc0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
您最近一年使用:0次
21-22高三上·河北·阶段练习
解题方法
8 . 已知
,
.
(1)若
,求
的取值范围;
(2)若
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/009371baa3b1b008aedd738fb1d9c451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3417699eb4a32521b7ff1f7b2a1d5f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbf8da534490147db4fee75f71a4c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb17c9b56ad4a3efaf30736a23898c00.png)
您最近一年使用:0次
名校
9 . 已知点P为抛物线
上一动点,
,
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ef03f452410ab19c6246567c427178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-09-18更新
|
2805次组卷
|
12卷引用:河北省沧州市第一中学等十五校2022届高三上学期摸底考试数学试题
河北省沧州市第一中学等十五校2022届高三上学期摸底考试数学试题(已下线)第十一章 圆锥曲线专练18—抛物线综合练习2-2022届高三数学一轮复习(已下线)考点42 圆锥曲线中的范围与最值问题-备战2022年高考数学典型试题解读与变式(已下线)解密16 抛物线方程(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(新高考专用)(已下线)考点8-4 抛物线及其性质(文理)(已下线)专题9-1 直线与方程题型归类-1(已下线)专题9-4 抛物线性质应用归类-2(已下线)专题9-4 抛物线性质应用归类-3陕西省渭南市2022-2023学年高二上学期期末模拟理科数学试题江西省南昌市第二中学2024届高三“九省联考”考后适应性测试数学试题(四)(已下线)专题3 最佳视角 米勒定理【练】(已下线)大招15直线夹角的计算方法
名校
10 . 已知函数
.
(1)讨论函数
的单调性;
(2)对任意的
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151b7e4caf59eab0e898f4190c64ad32.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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