已知
,动点
满足
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7613f5e7af7b50a65777e046ced4d3c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afe53e549f52d6f0b33aa6ac482ae7e3.png)
A.点![]() ![]() |
B.![]() ![]() |
C.![]() ![]() ![]() |
D.过点![]() ![]() ![]() ![]() ![]() |
更新时间:2024-05-28 16:35:37
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适中
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解题方法
【推荐1】下面四个命题中,真命题是( )
A.若![]() ![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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【推荐2】在平面直角坐标系xOy中,设定点
,P是函数
图象上一动点,若点P,A之间的最短距离为
,则满足条件的实数a的可能值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f352de477bcaa2d6d1f8cb007bc8e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edeed0665fc1a8e99ceb7911fe137390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
A.![]() | B.![]() | C.3 | D.4 |
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【推荐3】已知
,且
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be97cd1c7111b654d87d8fbb63b6a84.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() |
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【推荐1】已知
为双曲线C:
的左、右焦点,过
的直线交双曲线C右支于P,Q两点,则下列叙述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
A.若![]() ![]() ![]() | B.弦![]() ![]() |
C.点P到两渐近线的距离之积为![]() | D.点P与直线![]() |
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【推荐2】已知圆
,直线
与圆M交于C,D两点,则下列结论正确的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197bed6b6083b62dc2b61ec1ead079ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee66e94d44e2b3dc4d71cd181637e558.png)
A.![]() ![]() |
B.若直线l经过圆M的圆心,则![]() ![]() |
C.当直线l过原点O时,圆M上的动点到直线l的最大距离为![]() |
D.若![]() ![]() |
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解题方法
【推荐1】设
,过定点
的直线
与过定点
的直线
相交于点
,线段
是圆
的一条动弦,且
,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34209c3b5f127f721c77c5577730739.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b704810295a39a846a3c8acefa0af34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08227ca941898eb34941f446ca8b1de8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
A.直线![]() ![]() |
B.![]() ![]() |
C.点![]() ![]() |
D.![]() ![]() |
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【推荐2】已知点
在圆
上,点
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2025bac7b08ec9f206cfce02bdd7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/243e699ef05dc31d5f577bef2a22801e.png)
A.存在点![]() ![]() | B.![]() |
C.存在点![]() ![]() | D.![]() |
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【推荐1】已知圆
,点
是直线
上一动点,过点
作直线
分别与圆
相切于点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce769d55393c86ae6c312de5158e4b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac27984896c556ce6060e691eb708d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df8904b700810cfd3519798668aa35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
A.圆![]() ![]() ![]() | B.直线![]() ![]() |
C.![]() ![]() | D.四边形![]() |
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【推荐2】三角形的外心、重心、垂心所在的直线称为欧拉线.已知圆
的圆心在
的欧拉线
上,
为坐标原点,点
与点
在圆
上,且满足
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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A.圆![]() ![]() |
B.![]() ![]() |
C.圆![]() ![]() ![]() |
D.若点![]() ![]() ![]() ![]() |
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