1 . 在平面直角坐标系
中,
是抛物线
的焦点,
,
是抛物线上两个不同的点,若
,则线段
的中点到
轴的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee663cb9ee98aa9b57a24c800ff4478c.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/d55da6e2f6c74b7bffc76383550f776e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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2 . 将石子摆成如图的梯形形状,各梯形里石子的个数为5,9,14,20,…,即构成一个数列,根据图形的构成,此数列的第n项即![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/28/330babd6-8511-4b8d-ae47-d3051d4ddde7.png?resizew=196)
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3 . 若直线
(
)与圆
相切,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7d7ca9b1970b78a6e7b5b6cfbe3533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a915c1a8a9304aeb307d130faaeb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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4 . 已知
为等比数列,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f04f286f63962393d359510550b055b.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102e44c1e2a15b201bb6386f3ce7dfc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f04f286f63962393d359510550b055b.png)
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2024-02-28更新
|
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3卷引用:河南省许平汝名校2023-2024学年高二下学期开学考试数学试题
5 . 已知圆
的一条直径的两个端点坐标分别为
,
,则圆
的方程是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67fb11a5dc5060d8a57ad9fa942eb982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3654254401fc902c3cb4912969f21f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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|
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6 . 函数
的图象在点
处的切线方程是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b07ea8652749548a31eafe7ef88b702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d06e33d079ac1649ee5eea8f61de7cf.png)
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解题方法
7 . 已知点
是点
在坐标平面
内的射影,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc480968153be39ddeb2979942830a4e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee1397a5033e3173000e5d69f7bbef08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d4817aac2a4910300ebca91445eca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc480968153be39ddeb2979942830a4e.png)
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2024-02-28更新
|
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2卷引用:广东省中山市迪茵公学2023-2024学年高二下学期开学考试数学试题
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8 . 已知四面体
是棱
的中点,设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9d86315677a86bb4dc09d06310f3f1.png)
________ (用向量
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1317c716f05a6b59afdbd0de7ba8987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddc5343d0ed7b449971c7ba787a621fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9d86315677a86bb4dc09d06310f3f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
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|
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2卷引用:重庆市铜梁中学校2023-2024学年高二下学期开学考试数学试题
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9 . 某班拟从2名男学生和1名女学生中随机选派2名学生去参加一项活动,则恰有一名女学生和一名男学生去参加活动的概率是______ .
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2卷引用:四川省凉山州民族中学2023-2024学年高二下学期新高考开学考试数学试卷
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10 . 在边长为
的正方形铁皮的四角切去边长相等的小正方形,再把它的边沿虚线折起,做成一个无盖的方底铁皮箱.当箱底边长为__________
时,箱子容积最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd6f4250ca6b1b9bce234a01f00d44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
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