1 . 已知
为坐标原点,
,
.若点
满足
.记点
的轨迹为曲线
,且
与曲线
在第一象限的交点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e72358a12f923519a407a46c07f5d33.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5544274135a5332a1403741c8c0bd2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788a45292b81b3632fda1f9df89308fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad245ab26aecb331b737acaad7dbf8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0059cb1f331ba2fdfa8b089d4557401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e72358a12f923519a407a46c07f5d33.png)
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2 . 方程
有且仅有两个不同实根,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6387cc387bd55b9691e3c222476d8d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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3 . 函数
的对称中心为
,且
时,函数
的最小值为m,则直线
与曲线
的交点的个数为______________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec9ac9284368504ea966c855057f91d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752455799e49f846e2601304fec5d3b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8925ce765f8f75e0fb2e64c528c5d50b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c57c4c56aad0b65fefc30236651e3c0.png)
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2023-02-06更新
|
324次组卷
|
3卷引用:四川省成都市第七中学2022-2023学年高三上学期1月月考数学理科试题
名校
解题方法
4 . 已知点
.若曲线
上存在两点
,使
为正三角形,则称
为
型曲线.给定下列三条曲线:
①
;
②
;
③
.
其中,是
型曲线的有___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc9aa334c8a364cbc597127d60b2b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b74eb226474d2253bf4cab617b1162.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6190da0e5748928b84d509ab832ef9cb.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7bdabcb41ed25b34822be2cb0536239.png)
其中,是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
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5 . 关于曲线
:
,有如下结论:
①曲线
关于原点对称; ②曲线
关于直线
对称;
③曲线
是封闭图形,且封闭图形的面积大于
;
④曲线
不是封闭图形,且它与圆
无公共点;
其中所有正确结论的序号为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba886af19945397f1376a138183fbee.png)
①曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421e012e863cd15eea1a174cd0679c2e.png)
③曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
④曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.png)
其中所有正确结论的序号为
您最近一年使用:0次
2022-11-09更新
|
388次组卷
|
3卷引用:上海市宝山中学2022-2023学年高二上学期期中数学试题
6 . 已知点
,
分别为椭圆
的左、右焦点,椭圆
与双曲线
的一个交点为
,
为坐标原点,直线
的斜率为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ab21cf4f8f8ffa5dafd65eeb72c99a.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/93c0e2dea2f22992b0f4e8400b13af18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b04aa430e70bbe793ba85607d70b4a.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/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ab21cf4f8f8ffa5dafd65eeb72c99a.png)
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7 . 已知曲线
与曲线
恰好有三个不同的公共点,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0987c785e4b096befe994809cce880f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ee1d4fb9793b78b66aa2438b86cd1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2022-05-31更新
|
784次组卷
|
2卷引用:湖北省华中师大一附中2022届高三下学期高考前测试数学试题
名校
8 . 关于曲线
的下列说法,其中正确的序号是___________ .
①关于原点对称;
②是封闭图形,面积大于
;
③不是封闭图形,与圆
无公共点;
④与曲线
的四个交点恰为正方形的四个顶点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66eda389249f92eaba886f7c67e05e89.png)
①关于原点对称;
②是封闭图形,面积大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
③不是封闭图形,与圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b33328faae2d2d4921900e97424de5.png)
④与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f831661fc06b97d143f8e35710c7883c.png)
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9 . 已知
,
与x轴交点为A,若对于
图像上任意一点P,在其图像上总存在另一点Q(P、Q异于A),满足
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c930ab1239f1e842d6a448c255be76bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e8b17a7840ae7b75590da92fa0965b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33091c6dcc5e3c822fa3242c9437aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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10 . 已知椭圆
,若存在以点
为圆心,
为半径的
,该圆与椭圆E恰有两个公共点,且圆上其余各点均在椭圆内部,则t的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0b4bbfa0ed04cd3c2454d99d64e29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439e95540157803d4ac3cf61a49f50a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e1b2d25e575038885c5eddf1ddb229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347ab0d001ed7e8f51f9886ce88ac64.png)
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2021-05-22更新
|
529次组卷
|
2卷引用:湖北省武汉市2021届高三下学期五月供题数学试题