解题方法
1 . 如图,在四面体
中,
分别是
与
的中点,若
,
,则
与
所成角的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/87dcf39b-66f3-4adf-bb9d-7de9d0bad2d8.png?resizew=172)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a301baf6cc0628366e6661a87a2d93ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79982e865f2436988d3bf2d1fb15c4ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/21/87dcf39b-66f3-4adf-bb9d-7de9d0bad2d8.png?resizew=172)
A.90° | B.45° | C.60° | D.30° |
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解题方法
2 . 下列函数为偶函数的是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
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3 . 已知函数
是奇函数,且在区间
单调递减,则
在区间
上是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ce20dd544425c8bd3f2a885eca7bc5.png)
A.单调递减函数,且有最小值![]() |
B.单调递减函数,且有最大值![]() |
C.单调递增函数,且有最小值![]() |
D.单调递增函数,且有最大值![]() |
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解题方法
4 . 若集合
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f910018e333a2b96621456324ce61d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4afabfd5b4885311f8d9a4bcf791b71.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知
是第二象限角,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd00055345ab9b8a95f9cb601e7009e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dd8aad9cfb5e1fe2a45d80923f1571.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
6 . 若
且
,则
是( )角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb6e94acb09a3d0e51aab9df90ad1b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dddea0134685ce58a7a850ac8aa52aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.第一象限 | B.第二象限 |
C.第三象限 | D.第四象限 |
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解题方法
7 . 已知角
的终边经过点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb98394ec9715ba3eedfcbd45eaef61b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82da18f85781ccb440700a43e8a60b21.png)
A.3 | B.2 | C.![]() | D.![]() |
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8 . 函数
的定义域是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878276e7848d75936d256bfa235589db.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
9 . 掷两颗均匀的骰子,则点数之和为6的概率等于( )
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 经过点
,倾斜角是
的直线方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e91676c7adfd65a76f56a0c1d4bbe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次