名校
解题方法
1 . 若复数
为虚数单位)为纯虚数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3cadf9816096e03d4ab3bbd1822e005.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a59742de1081cb2361ebb03f8ae45c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3cadf9816096e03d4ab3bbd1822e005.png)
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2 . 已知
的顶点坐标为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10cd79c2b3ae37d29719eb5c6a488ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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3 . 已知向量
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013b1423e5cff4d3f20c6346a100e4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc66cd5ccd5a579a42c6a241c62d764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780cba61bee49b5b5c51390969741a69.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
7日内更新
|
191次组卷
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5卷引用:吉林省长春市2024届高三下学期三模数学试题
名校
解题方法
4 . 已知非零平面向量
,
的夹角为
,且
,则
的最大值为( )
![](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/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c749bf931067fe018d6c0cd1f1d17c96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df935fa012bba7c0e920776ed24f56b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 在正方体
中,下列结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() ![]() ![]() | B.AC和![]() ![]() |
C.![]() ![]() ![]() | D.![]() ![]() ![]() |
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6 . 如图,在四棱锥
中,四边形
为正方形
为等边三角形
分别是
和
的中点.
(1)求证:直线
平面
;
(2)若
求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7e7211d87f8e44dd5d61ce4f6c8ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29560ed838ea0c239351c94d23945a2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/6/6/abc4db76-cd11-43ef-9739-9420097d6286.png?resizew=142)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d7c56ff7012053b6db5073df693800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422210c777ac0d625bbd81cc7601bf9b.png)
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解题方法
7 . 在
中,角
的对边分别为
且
若三角形的面积为
且
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c48d400297f423dafde78aba92a7195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a10139dcd7321d24dc9f41606203a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4121fecca5afea0ca688575de00923e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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8 . 下列函数在
上单调递减的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea0925aabe29bdf98d5f129a132c4c1.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 已知抛物线
的焦点为
点
在
上. 若
到直线
的距离为4,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cc141e9b6050eae77c22dd46fd4ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5c664aa79a88c035d7ece15220a4c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1c76111ee604ba947ad94a13695a2e.png)
A.7 | B.6 | C.5 | D.4 |
您最近一年使用:0次
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解题方法
10 . 已知
,若
.
(1)求实数m的值;
(2)求
;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475e86b858a64a40b0ab376742ad44d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e375fc24463eb3f06d73f52a6c96d55.png)
(1)求实数m的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d331d6254b8d27ab4f981de26f354398.png)
您最近一年使用:0次
7日内更新
|
338次组卷
|
2卷引用:吉林省长春外国语学校2023-2024学年高二下学期期中考试数学试题