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1 . 集合
和
表示同一个集合( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b07a67307d5d4627efa688b30e5573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8e2bbfe4b56918efce331da790152d.png)
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2 . 函数
和
是相同的函数( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f45277177aef29b0eb3a06492f8ea342.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3220f60e79d64944c73a03ae0080b9e.png)
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3 . 已知
,则
的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7511e6ce72a5232820b7007f976be9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635ba93fc279e47963ff77285d7a2337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
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4 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40d517f1354ec1851a91f888e8a2046.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40d517f1354ec1851a91f888e8a2046.png)
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5 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f987c777f3aaf496edfe74674af627.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1f987c777f3aaf496edfe74674af627.png)
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6 . 满足条件
的集合
的个数是2个.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6ea7fda815b8fede7123b845c431a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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7 . 已知集合
,则
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfa605d2e4a7815575b9f22078166f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d911b5ea23c1dec6c6435bdebe7a6a.png)
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8 . 满足条件
的集合
的个数是3 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6ea7fda815b8fede7123b845c431a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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解题方法
9 . 已知角
的终边经过点
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f032f724621a450bfa4e1eff316b8bef.png)
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554516a5ae7303967f3dd21ee0bd6e36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992606728e61c234b0c0398f61e73a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f032f724621a450bfa4e1eff316b8bef.png)
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10 . 已知
则
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7d6d7740f8d9cfcf994044a77a3c10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ed4485745f1d259a3953c242b9cf2.png)
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