名校
1 . 已知
中,角
所对的边分别为
,
,
,
,若
,则
的最小值为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95d62b9a1fc994c972781c7013fedba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1b5305cb9b5a90c4f13bceaaee4fc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68918379531894442f55c7257549ea33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c4807435a3e91de8aba99db62e23bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0987a20a5648765bce6ae78a693106.png)
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解题方法
2 . 正方形
的边长为4,点
是正方形
的中心,过中心
的直线
与边
交于点
,与边
交于点
.点
为平面上一点,满足
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05483d7b5bec16efb49a845f89e9d5d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d8eb37a4dd75318dcbd836395e575bd.png)
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2024高一下·全国·专题练习
3 . 某地区为了解最近11天该地区的空气质量,调查了该地区过去11天小颗粒物的浓度(单位:
),数据依次为
.已知这组数据的极差为
,则这组数据的第
百分位数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efdb7f48da622c1226d955a4b6025a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a7b3a9c473048fee886bbef59e2715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b72ac611ae66b86761e080761d9aabc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
4 . 波斯诗人奥马尔·海亚姆于十一世纪发现了一元三次方程
的几何求解方法.在直角坐标系
中,P,Q两点在x轴上,以
为直径的圆与抛物线C:
交于点
,
.已知
是方程
的一个解,则点P的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19db0a8b4c9108e50d1d1de215220139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071d4c1556de22088445f191a80b8a25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/776bee64c15a10647a81af32c6c1082b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a032228f52b919700de88ab7a806840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5b80ba68333c85361226405acf33d56.png)
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5 . 用平行于棱锥底面的平面去截棱锥,把底面和截面之间的那部分多面体叫做棱台.在正三棱台
中,侧棱
,则侧棱
与底面ABC所成角的正弦值为_____________ ,该三棱台的体积为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/944f00d2d962252c286827fd47b4b978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
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6 . 已知
,那么
的近似值为______ .(保留小数点后一位数字)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2493a9847bdf4e7e0cb5da764d62a4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cf6d10885fb83ded00d4e39532fcd10.png)
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7 . 已知直线
是曲线
和
的公切线,则实数a=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3016baf1a9ce777f16ea9ce469b2510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d3d19985e2f97c96d21ff4eee3066b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6076528c51f65d3fa136ff15185ccbc.png)
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2024高一下·全国·专题练习
解题方法
8 . 设向量
满足
,
与
的夹角为
,则
的最大值为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a6e85195941321bc8fdb417153a2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b714d7bdaaa6635fe254d8ade3b884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c88190fb57e877047c8cdc3b564ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbdfc15af2c340bb425029c46bec322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9007ec6447a9428dadb4fdb7ae9bae.png)
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9 .
的展开式中
的系数为__________ .(用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e5065f9853cbd88dac210bc02251299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7554b2a0cfc2a6fae8af010a5175d959.png)
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10 . 若函数
有两个不同的零点,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f324645c18e86aa94cfb603600aeca38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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