解题方法
1 . 函数
的定义域为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ffcc733d9705d5095379487a6edbc3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . 如果一个长方体长、宽、高分别是4,4,3,则它的体积为( ).
A.48 | B.40 | C.80 | D.16 |
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3 . 如果命题
,则
为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e31daa7ef59bebb5e9078cd82a1eecb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 计算
的共轭复数为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a383f8042e5708406f26126c7ac3d567.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 过点
,倾斜角为
的直线的方程为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
6 . 已知向量
,
,
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b981b38133d5d65060dd8ff4d65a66be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0853e06013e5e1fa7d6068198dbe1d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c71ff32ae633697b26cc81c9b2481f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.![]() | B.-2 | C.10 | D.![]() |
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7 . 以下结论中正确的有( ).
A.函数![]() ![]() |
B.函数![]() |
C.函数![]() ![]() |
D.函数![]() ![]() |
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解题方法
8 . 在直三棱柱
中,
,
,角B是直角,点D是侧棱
的中点,则异面直线
与直线
所成的角大小为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f41d364b55d88688cd1f571ed231228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ecad355286188fd317939fa50f9555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
9 . 如图,在四棱锥
中,底面
是正方形,侧棱
底面
,
,点
是
的中点,
在直线
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/30af9cba-7456-44ab-bba1-c59334d2e408.png?resizew=143)
(1)若
,求
的值;
(2)求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d4d36ae30487030b827ce9413b9f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/15/30af9cba-7456-44ab-bba1-c59334d2e408.png?resizew=143)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc2484662ae40c406b054d14a7f9e118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aafecdff4e61f7e74e06db9b31c826c.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e5777a34d4761364c48e2b53ab79ff1.png)
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10 . 已知点
是平行四边形
所在的平面外一点,如果
,
,
,下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317a7d8f62c5daeb3f963f392d32bdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a9a87d18bca7451b1d26cfb42dfda1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e75f928f2166dd6e2bb52500f1383bf.png)
A.![]() | B.![]() ![]() ![]() |
C.![]() | D.![]() |
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