名校
1 . 在长方体
中,
,点
是线段
上靠近
的四等分点,点
是线段
的中点,则平面
截该长方体所得的截面图形为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643c1d8cdf1415e1e4714463f5cc88c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
A.三角形 | B.四边形 | C.五边形 | D.六边形 |
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2 . 已知
,且
.
(1)求
的最小值m;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a521891098b625f372ff648d110afe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a78be779a807b53897bfeea6c8e4a1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa629b250bb3e84a30472721dd687dd5.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72544819df06031b061214aa0ebd3071.png)
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19次组卷
|
2卷引用:四川省成都市第七中学2024届高三下学期热身考试数学(文)试卷
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解题方法
3 . 内切球半径为1的正四棱台其上、下底面边长可能分别为( )
A.1,3 | B.1,4 | C.![]() ![]() | D.![]() ![]() |
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2卷引用:四川省成都市第七中学2024届高三下学期热身考试数学(文)试卷
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4 . 一个多面体的三视图如下图,图中所示外轮廓都是边长为1的正方形,则该多面体的体积为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:四川省成都市第七中学2024届高三下学期热身考试数学(文)试卷
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5 . 设向量
,
满足
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327bd00ff3048e5833d25de3a7fbe349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ea3edc5496ecad2ab1c09f14aa9869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/072b156d6fc1a4ed04070c0200feddd0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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85次组卷
|
2卷引用:四川省成都市第七中学2024届高三下学期热身考试数学(文)试卷
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6 . 已知直线
与
相交于
两点,若
是直角三角形,则实数
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6bfe3b6f3b0d7d0fb49b48472623f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e124866e77f0f2ea81e31b5ef30c9ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c72229b08c676c08a3c7258895375f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.1 或 ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
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303次组卷
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3卷引用:四川省成都市2024届高三下学期第三次诊断性检测理科数学试题
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解题方法
7 . 三角形三内角
,
,
的对边分别为
,
,
.已知
.
(1)求角
的大小;
(2)若
的面积等于
,
为
边的中点,当中线
的长最短时,求
边的长.
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbea95fdd92c649f231b1256051252e9.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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8 . 已知函数
的定义域为
,在定义域内存在唯一
,使得
,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d513062c9f8af3dc752ce6a0e72311d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b77857e15ae11fc94a5e33bfc12d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c7a2b72dec34ac13f001055bf75412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 函数
恰好有一零点
,且
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312238cb2c479bfee2d7bb15ff62cdb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564caa5ff6dfaf9b488f59031e9d7525.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
10 . 已知抛物线
的焦点为
,圆
以
为圆心,且过坐标原点,过
作倾斜角为
的直线
,与
交于点
,
,与圆
交于点
,
,其中点
,
均在第一象限,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0312acfa80f3ffd147e7c7c9a965ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e77e7070d6b0ae77aa41e1aca32216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
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