定义在R上的偶函数
满足
,当
时,
,则函数
的零点的个数为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c25fb0c3e1b6ef211233170b9aa9001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01e47d77aa8a3cff15aaa7e1e893c761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcd3952974ed7349a5a36d6f8bdd0d5.png)
更新时间:2019-10-30 08:55:14
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相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】有如下几个结论:
①若函数
满足:
则2为
的一个周期,
②若函数
满足:
则
为
的一个周期,
③若函数
满足:
则
为偶函数,
④若函数
满足:
则
为函数
的图像的对称中心.
正确的结论为______ (填上正确结论的序号)
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047f7edd7d339faa4a1dba0118ca29d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1969c18ba68dc3b5dead8494825476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73d9aa53e2d496bb14e106d82289940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f5d6af15de3e374158ee39ea503d5bb.png)
④若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2e451147e65a9d1850738c78dd6bf7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0481d24e2af1e0cd348732b9444d1dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c3dd8fa2dc8c0c7e255bfb054ad34c.png)
正确的结论为
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解题方法
【推荐2】已知定义在R上的函数
对任意实数R满足:①
;②
,且当
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c1db9156e745b3c807b50ee1397255.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b39da9bdec1a845e9060ac134c8bb06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e058e3635fe724338166dd80339b4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dd703f20cea76efd06457cefbd9722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c1db9156e745b3c807b50ee1397255.png)
您最近一年使用:0次
填空题-单空题
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解题方法
【推荐1】函数
的零点个数为_______ 个.
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976836018176/1572976841932800/STEM/1bc1e312981d4a8b84908db74fd5f1bc.png?resizew=145)
您最近一年使用:0次
填空题-单空题
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(0.65)
解题方法
【推荐2】对于函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34148b131cd8e2ed731399a807f28d5a.png)
的叙述,正确的有______ (写出序号即可).
①若
,则
;②若
有一个零点,则
;③
在
上为减函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34148b131cd8e2ed731399a807f28d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3e3bcd67cf1a355986c6e3132470c7.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2cf6ee22191d2e11554dda28faca86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8bcf0d02cbcfcacc40d153445434ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
您最近一年使用:0次