解题方法
1 . 已知
,直线
与
的交点
在圆
:
上,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c315f1b956827fa56c9edb912c51214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099894b25bc69741c7c5a0e443b3ac7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c1c1d3859045e855867090ca66a19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 已知直线
与⊙
交于
两点,设弦
的中点为M,则
取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6569761055da9d63d8713581f9cf62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4fdaa519175993867a2435308dbddd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c19fa4cd646f4d877c3e58cc346651.png)
您最近一年使用:0次
3 . 已知P是圆
上一动点,则点P到直线
的距离的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188b3d71a93f86a7765049bd0821723d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 已知点
,直线
与
轴相交于点
,则
中,
边上的高
所在直线的方程是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68b0d8f1e6546a3bba0f78e661acad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091c83390d0755e1b72755cf37490351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/4eedae8d316c76e3d0b451256de03fb9.png)
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解题方法
5 . 已知直线
与
交于一动点,
是该动点的轨迹上的两个动点,点
且
.线段
的中点为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337072547efb659e421e0f57f47e5127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ffea25368897b9036ea65dd08b77989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daf40bad1cc89311930cce356672354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d03310fa9440053c57d878acc06d02d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84cef568cfe2fc12a4dec11533ada274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() |
B.点![]() ![]() |
C.![]() |
D.![]() ![]() |
您最近一年使用:0次
23-24高二下·上海·期末
6 . 已知点
,
满足
,
,且点
的坐标为
.
(1)求过点
、
的直线
的方程;
(2)试用数学归纳法证明:对于任意
,
,点
都在(1)中的直线
上;
(3)试求数列
、
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/079433d8cf832cc8ee996f87a7494a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c325f5932b1d134c7613e0fa6b32d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494852b4d9a733c2280ffdcc61922e55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad9dba73c9dfa896e44bc19571f3377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5030685d4bfdaba51d78d4678f3e101c.png)
(1)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)试用数学归纳法证明:对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a40142c84be68ee2918c3a8303388c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e167b43045b3297248e334c41c621b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)试求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
您最近一年使用:0次
7 . 直线
,被圆
截得最短弦的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366a3fa39aa395b1405fbc866a516b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51583192ffb8fae8189fe500e972ba6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知直线
与圆
交于
两点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fad8d7d3275c4d36b991727e3578a43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c424f7c2786a4c14d9efe94a065cefe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
A.2 | B.3 | C.4 | D.6 |
您最近一年使用:0次
2024-06-18更新
|
671次组卷
|
3卷引用:2024年高考全国甲卷数学(文)真题
9 . 已知b是
的等差中项,直线
与圆
交于
两点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cda097a4e7c41100e573d8304ee066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f6e1f67dc15c3cf135a78af95c70fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99fd44ea14ac1cf7707062a5a6debd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2401bc9c26cc3b0b8384c7139bd58fff.png)
A.1 | B.2 | C.4 | D.![]() |
您最近一年使用:0次
2024-06-17更新
|
3422次组卷
|
7卷引用:2024年高考全国甲卷数学(理)真题
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名校
10 . 已知圆C:
,直线l:
(
),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/550d183b05000722c74baf25eb4a6741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5c5829ddf6feec8fc9709fbc63776c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
A.直线l恒过定点![]() |
B.存在实数m,使得直线l与圆C没有公共点 |
C.当![]() |
D.圆C与圆![]() |
您最近一年使用:0次