已知函数
的最小正周期是
,且
的图象过点
,则
的图象的对称中心坐标为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc96e5d2833cae8f64734e7c51c9c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b220ec734aadd24518dbf7dd975965b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
更新时间:2022-01-27 20:34:34
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【推荐1】已知
和
的图像的对称轴完全相同,则
时,
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e678e57a7c6444b8fd1902c2771ad53.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778662c16848db470c6537705b8a839c.png)
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【推荐2】已知点
,
,
是函数
的图象和函数
的图象的连续三个交点,若
周长的最大值为
,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a2df4eacc58ed8629f381164f94df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e139317709c2107a25503607a4190d65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388590e0f8d9dfeaf2b65f80648257d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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【推荐1】关于函数
,有下列结论:
①
的最大值为
;
②
的最小正周期是
;
③
在区间
上是减函数;
④直线
是函数
的一条对称轴方程.
其中正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/962ca82dc17ab2fa859654f73b869680.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5579ec762914bd7043853af67f8382c8.png)
④直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24db7b603aebdee8e298d1fe49c848e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
其中正确结论的序号是
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【推荐2】给出下列命题:
①存在实数
,使
;
②函数
是偶函数;
③直线
是函数
的一条对称轴;
④若
是第一象限的角,且
,则
.
其中正确命题的序号是______________ .
①存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e331b0caaac0c1c1d2084ac1589cb10.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f43fe19b152d93cb1981c068a9e86a.png)
③直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e60b49815c5c25b48e6c74d7077851a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d551a24bc5a4415482e5b4322350f82.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c61cfbfd3bf888856b7dc9b2a84c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116a4f1c8b51d1993e6d7c054e2ed5d7.png)
其中正确命题的序号是
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名校
【推荐1】用“五点法”作函数
的图象时,列表如下:
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71599cd707909eb30d2a54be7f8c966.png)
_________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c243e781dacbd8103f4e32a9d8b090.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71599cd707909eb30d2a54be7f8c966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c243e781dacbd8103f4e32a9d8b090.png)
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解题方法
【推荐2】已知函数
的部分图象如图所示,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfb264941f65f82ff2741149cec9ff7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71499add4b8495c71205a5acb26eb97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adfb264941f65f82ff2741149cec9ff7.png)
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897107745079296/2904086368714752/STEM/949a6862-3eae-48f5-995b-9ebc6cda6789.png?resizew=191)
您最近一年使用:0次