解题方法
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156c27e38e993045a66768f6d9c5dd64.png)
的值;
(2)在坐标系中画出
的草图;
(3)写出函数
的单调区间和值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156c27e38e993045a66768f6d9c5dd64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1e8ae93be5d4f44440dc3d2613d0ea.png)
(2)在坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2 . 在空间直角坐标系
中,画出下列各点:
,
,
,
,
,
,
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e336d6ca2cae3d6e6c3810d7e521a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085f68fdcbbda6b555a9c3436931cab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a62aea996509d673117cda86273ffc8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd4bb8d85ca045e48340fdfffd47f790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129492dfa12f575878876fdae59056f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1248bfbf7b6bfb975c9b1218e173cca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a74351a4978b08840453f6fa526bbbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaf5d80e612373e00ec7e84afdb7235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9db0256d136ece7f83319f78bd3c233.png)
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3 . 在正方体
中,过
,B,D三个点作一个平面,请画出二面角
的平面角,并说明画图的根据.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb8ad11e4c9f36d02ff1b6405ddd70a.png)
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名校
解题方法
4 . 已知函数
.
在一个周期上的图象(完成表格后描点连线);
(2)若
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8a1119ceb5cd8291504bead1a6730d.png)
x | |||||
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc90475c3571f0940112627652778c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32ab50ffb5cde43b7efe86c6e3ad583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5ff5a2e7663e6a21ccea3149a10113.png)
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名校
解题方法
5 . 如图,在正方体
中,若
为棱
的中点,
与平面
是否相交.如果相交,在图1作出这两个平面的交线,并说明理由;
(2)如图2,求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98fcaa21173e78d407bfa4170849e2eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)如图2,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d2a971f1ebba93b20649a2233a0e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
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6 . 如图,长方体
中,点E,F分别是
和BD的中点,
,
,
,将下列两组中相等的向量连线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08b344a0ebe520f4147702257aa276b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d021a5c98388463d577675e58068aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc9a915b6183ce6418229dad5fec617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f639828509b293069c2782d049d22f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19537b6aa2888860ce6a8033d4a63fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18a0e783537963d7ebd93b2e481c548e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8d06249c2993354ec165218a038265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea16abad79703e194ef022e430682021.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08b344a0ebe520f4147702257aa276b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532a41ad7600bcb9eecb949fec58acee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d021a5c98388463d577675e58068aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb169a920a8286d127ba71b99f5c139b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc9a915b6183ce6418229dad5fec617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9492b5602eba95ed7757f60687aaa1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
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2024高一下·全国·专题练习
7 . 如表所示给出了在某校500名12岁男孩中,用随机抽样得出的120人的身高(单位:cm).
(1)列出样本频率分布表;
(2)画出频率分布直方图;
(3)估计身高小于134 cm的人数占总人数的百分比.
区间界限 | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
人数 | 5 | 8 | 10 | 22 | 33 | 20 | 11 | 6 | 5 |
(2)画出频率分布直方图;
(3)估计身高小于134 cm的人数占总人数的百分比.
您最近一年使用:0次
8 . 随机观测生产某种零件的某工厂25名工人的日加工零件数,获得数据如下:30,42,41,36,44,40,37,37,25,45,29,43,31,36,49,34,33,43,38,42,32,34,46,39,36,根据上述数据得到样本的频率分布表如下:
(1)确定样本频率分布表中
,
,
和
的值;
(2)根据上述频率分布表,画出样本频率分布直方图与折线图.
分组 | |||||
频数 | 3 | 5 | 8 | ||
频率 | 0.12 | 0.20 | 0.32 |
(1)确定样本频率分布表中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c44826e58f11a58d3a6c233fc5df2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/215b1424b299b737554386b090af8316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226e10b63b42fd5b695db882fe6f48a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2187a1a0f3baa9ace0f3aa7efa9cd794.png)
(2)根据上述频率分布表,画出样本频率分布直方图与折线图.
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2024高一下·全国·专题练习
9 . 画出图中水平放置的四边形
的直观图
,并求出直观图中三角形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7139f32092256a2e816d826d501be98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbbfc9b2f8dc8a643a8deb3c756bc023.png)
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名校
解题方法
10 . 已知复数
,
,
,它们所对应的点分别为
、
、
,在复平面上构成一个正方形的三个顶点.
(1)画出示意图,验证说明
;
(2)求这个正方形的第四个顶点对应的复数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db04f988e1aba18b0a3470d332908c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70ae34624f8f116b37c06560710e63fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ea8640c311d5f7d3c94cf817b332ad8.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)
(1)画出示意图,验证说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
(2)求这个正方形的第四个顶点对应的复数.
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