设直线
,
,其中实数
,
满足
.
(1)证明:直线
与
相交;
(2)证明:直线
与
的交点在圆
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946af29b5bd61926ad3ba61bdf4f6981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c35fece5593f3053dab27971e9d3b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d497d2970659c2934700d8427f587a29.png)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
20-21高一·全国·单元测试 查看更多[1]
(已下线)第四章+圆与方程(能力提升)-2020-2021学年高一数学单元测试定心卷(人教版必修2)
更新时间:2021-01-06 13:31:31
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相似题推荐
解答题-问答题
|
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名校
解题方法
【推荐1】已知
,
,
为平面内的一个动点,且满足
.
(1)求点
的轨迹方程;
(2)若直线
为
,求直线
被曲线
截得的弦的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b47e7bf02b3ca16f7d96b9369e51a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e35d41ab16b8f6f98a934f6657efe954.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0985b973395bcd371cd1e26d3fcd1c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
【推荐2】已知圆
,直线
与圆
相交于A,B两点,记弦AB的中点
的轨迹为曲线
.
(1)求
的方程;
(2)已知M,N是
上两点,点
,若四边形OMPN为平行四边形,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf503ae2e1b201b872fef07dd9ff2cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16bfe15121de6bf908463b7907feabd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知M,N是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383407840c52dc7878e113e3393e9780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35b1e8a952aac4f4cdaaf02d868d04.png)
您最近一年使用:0次
解答题-证明题
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较易
(0.85)
名校
【推荐1】设
是四个正数.
(1)已知
,求证:
;
(2)已知
,求证:
中至少有一个小于1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec99c57bf7997bd93e1ed8f48d5af9a.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce2b1dfc928cea3d68d58e2f5eed0e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb5d9101003576f9e0b1dea7c7f69ef.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a464804f943a8ee1dfc7f19b42d5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec99c57bf7997bd93e1ed8f48d5af9a.png)
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解答题-证明题
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较易
(0.85)
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【推荐2】已知
,求证:
(1)
;
(2)
与
至少有一个大于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c8cc9a7e986e3a05f436dcf94b0053.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2582892eba557b99dbe879efb9754d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8b00099c87d4771161c1eedad1c5f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
您最近一年使用:0次