名校
解题方法
1 . 关于
的方程
有解,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9aa4e61b7a13eb76d181e94509a30ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2021-12-12更新
|
369次组卷
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2卷引用:重庆市巴蜀中学2021-2022学年高二上学期11月月考数学试题
21-22高二·全国·单元测试
名校
2 . 已知抛物线
.如图,过焦点
作斜率为
直线交抛物线
于
,
两点,交抛物线
的准线于点
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3861ed9a20adbd16261163051f7d58.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae6911c4c4b2656f30e560098281c3c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3861ed9a20adbd16261163051f7d58.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/07d5f5b9-0634-4a9e-91f4-952e45c7a48c.png?resizew=133)
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3 . 如图,
是两个新建小区,
到公路
的垂直距离分别为
,且
,中国移动决定在线段
两点之间找一个点P建立一个信号塔(P不与
重合),当P对
两地的张角
越大时,信号的辐射范围越大.
![](https://img.xkw.com/dksih/QBM/2021/12/5/2866066726830080/2867440845307904/STEM/e9e09bf2f9134459b1c6668239fb6d88.png?resizew=203)
①当
为直角时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f0ac74a756891b258d4cb46c56a4f2.png)
_________
;
②当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f0ac74a756891b258d4cb46c56a4f2.png)
__________
,信号的辐射范围最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77b273eeededfc2d091589f512cd4aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b794623adf533ebfded70d5b44a22d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://img.xkw.com/dksih/QBM/2021/12/5/2866066726830080/2867440845307904/STEM/e9e09bf2f9134459b1c6668239fb6d88.png?resizew=203)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f0ac74a756891b258d4cb46c56a4f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f0ac74a756891b258d4cb46c56a4f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
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2021-12-07更新
|
943次组卷
|
6卷引用:重庆市巴蜀中学2022届高三上学期高考适应性月考(四)数学试题
重庆市巴蜀中学2022届高三上学期高考适应性月考(四)数学试题(已下线)专题07 三角函数与解三角形问题(讲)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(浙江专用)》(已下线)专题06 三角函数与解三角形问题(讲)--第一篇 热点、难点突破篇-《2022年高考数学二轮复习讲练测(新高考·全国卷)》(已下线)第八章 解析几何 专题6 有关张角的最值问题 高中数学优质试题一题多解和变式训练(已下线)思想04 运用转化与化归的思想方法解题(4大题型)(练习)(已下线)专题3 最佳视角 米勒定理【讲】
名校
解题方法
4 . 已知
是离心率
的椭圆
上一点,直线
与C相交于
两点(
均不与P重合),若
,则椭圆C的方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4c63812c9185b59a51aef0512b52f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81529452eb2cb8578fd164db9e957ae.png)
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解题方法
5 . 已知函数
,对于任意的正实数
,都有
,则实数m的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42549442df6a873761a0701e23e56a6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e94f504830cca297804df596cd2374f.png)
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6 . 如图,点F为双曲线C:
的右焦点,离心率为2,过点F作直线
垂直于双曲线的一条渐近线于A点,与另一条渐近线交于B点,又与y轴相交于点M,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5a954feb03a6ee75445342f496e60a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/4233bc26-842b-42cd-9d1e-8bdb12832c57.png?resizew=195)
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7 . 已知数列
满足
,令
,设
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d433517d14291abf6a38f29e75b691.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fabfb944d91ce8a01e5fa656d5e432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25b075f3002d83c9bedb113dc04b4f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d433517d14291abf6a38f29e75b691.png)
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解题方法
8 . 若
,
,且满足
,则
最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578b6d9c1ada9cb8ff9e043767888a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
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2021-11-23更新
|
466次组卷
|
3卷引用:重庆市渝中区重庆复旦中学2021-2022学年高一上学期半期(期中)数学试题
名校
9 . 棱长为1的正方体
中,
分别是
的中点,则点D到平面
的距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/481e426224c3a3ce9bb5a731eed81c40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a6a7bf19f1bb49ab5a90bb236a7318.png)
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10 . 已知椭圆x2+
=1上一点P,过点P作PD⊥x轴于点D,E为线段PD的中点,则点E的轨迹方程为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/275eff9016bc53ed260e54dc2932bc53.png)
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