解题方法
1 . 若实数
,
满足
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/792d738d46f28d353007440ccf146389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f91b179acc44eef5f8aae72a391997.png)
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名校
2 . 正方形
中,点
在以
为圆心且与直线
相切的圆上运动,若
(其中
,
),则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4ae2789a5e286e2ce63783a7d60165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cefeddff52b02a43831beeb4bb6faa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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2020-03-16更新
|
930次组卷
|
4卷引用:山西省太原市第五十六中学2020-2021学年高一下学期第一次月考数学试题
山西省太原市第五十六中学2020-2021学年高一下学期第一次月考数学试题2019届湖北省黄冈中学高三三诊理科数学试题2019届湖北省黄冈中学高三三诊文科数学试题(已下线)三省三校2022届高三下学期第一次模拟数学(理)试题变式题11-15
3 . 在直角坐标系xOy中,一单位圆的圆心的初始位置在
,此时圆上一点P的位置在
,圆在x轴上沿正向滚动.当圆滚动到圆心位于
时,
的坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6a9ffffc0c461881b427c543924cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832f2474efe89961ef41e884da7660c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
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2020-03-02更新
|
370次组卷
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3卷引用:河北省“五个一”名校联盟2018-2019学年高一下学期期末联考数学试题
名校
4 . 以平面直角坐标系
的原点为极点,
轴的正半轴为极轴,建立极坐标系,两种坐标系中取相同的长度单位,直线
的参数方程为
(
为参数),圆
的极坐标方程为
.设曲线
与直线
交于
、
两点,若
点的直角坐标为
,则
的值=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89949a2c28c7ba56d7927c2691a02bba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634aba936c758ce83cdf43996c7ae409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee7df089e093c2ed3cc61641910c7809.png)
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2019-12-28更新
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515次组卷
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3卷引用:福建省泉州市永春一中2019-2020学年高一新生夏令营学科素质测试数学试题
名校
5 . 在直角坐标系
中,圆
的参数方程为
(
为参数),以坐标原点为极点,以
轴的正半轴为极轴,建立极坐标系,直线
的极坐标方程为
,
.若直线
与圆
相交于
,
两点,
的面积为2,则
值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada5883c31c8fce256cc0f6207c94a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3e5e8a0fcd5ed3f193b03400d64c60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abad909e0902a78436f29d6a755e2e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c7b00bbc388a57080f7dab4aca8286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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6 . 如图,△ABC为等腰三角形,
,
,以A为圆心,1为半径的圆分别交AB,AC与点E,F,点P是劣弧
上的一点,则
的取值范围是______ .
![](https://img.xkw.com/dksih/QBM/2018/1/31/1872448930963456/1873498952097792/STEM/6bdc773b8bea47aba8f7eca30b0571b1.png?resizew=252)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fffa3d9c32da53b0ea0c338012ea20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566b100fb2ebe3d208f9b6527934218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e124a392dc84fcc1662fe6d896aa12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e778fcd92a0c8890b5cd7bed0615486.png)
![](https://img.xkw.com/dksih/QBM/2018/1/31/1872448930963456/1873498952097792/STEM/6bdc773b8bea47aba8f7eca30b0571b1.png?resizew=252)
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2018-02-02更新
|
1924次组卷
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4卷引用:人教A版(2019) 必修第二册 过关斩将 第六章 6.3 平面向量基本定理及坐标表示 6.3.5 平面向量数量积的坐标表示