19-20高一·浙江杭州·期末
1 . 对于函数
定义域中任意的
有如下结论:
(1)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d24c9ac3a4bb96db1f17b2dce595359.png)
(3)
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04fa2a0581911b801a43f0726a03aad.png)
(5)若方程
有解,则方程的所有根之积为1
(6)若方程
有解,则方程的所有根之积不是常数
当
时,上述结论正确的序号为______ .(注:把你认为正确的命题的序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f58d4591d668b4bc32fae4faab8298.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8514510dc90cc3a46e6416f67d5a3883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d24c9ac3a4bb96db1f17b2dce595359.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698cf53f76a1d637dfe2732d0a866eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04fa2a0581911b801a43f0726a03aad.png)
(5)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a54ffc80b5fe4e2b1e215d1243e009.png)
(6)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a54ffc80b5fe4e2b1e215d1243e009.png)
当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f5f8d2a47f0372ecadf73dfcfc39cd5.png)
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2 . 已知函数
和
,有下列四个结论:
①当
时,若函数
有3个零点,则
;
②当
时,函数
有6个零点;
③当
时,函数
的所有零点之和为
;
④当
时,函数
有3个零点;
其中正确结论的序号为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9840391d419be2c41486d68765a8d026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6c6239394a7a9f13584e954f0dbded.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc046a7b475b5130da69bf537226ec8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9977b59a789b7cfdd49185deb2b1b0d7.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3adb9acead48e36b705874dc96979f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a876d70607e661282d61705b36ae40df.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfc6f997f5465c88d68dde7fd874fe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276b142a9d9f0a87425a668dd6501f15.png)
其中正确结论的序号为
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