1 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859a715c9289e2debfc83088355e8f65.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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2019高三·江苏·专题练习
2 . 已知函数
,直线
、
为曲线
的两条对称轴,且
的最小正周期
,则
取得最小值时
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583fc3fa4c53e163adadbec7760650bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6461468072bd27afd53fd5f9c3bf344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d234b148b4ead8bb8eb746993d35686c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ca477295e37b9407df7295e1efe3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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3 . 先将函数
的图象上所有点的横坐标缩短到原来的
倍,纵坐标不变,再把得到的图象向右平移
个单位长度,得到函数
的图象,则下列说法正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a41cef69dedc94257c420809047e73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
A.函数![]() ![]() |
B.函数![]() ![]() |
C.函数![]() ![]() |
D.![]() |
您最近一年使用:0次