1 . 已知函数
满足
和
都是偶函数,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f264e390bdf693a5978fc762c79a6def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bf5ac7fd4cb73edd6fb09d1101fecf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b8d9335baf572cc19d765fa8b46e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f264e390bdf693a5978fc762c79a6def.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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20-21高一·江苏·课后作业
2 . 如图所示,正方形ABCD的顶点A
,B
,顶点C,D位于第一象限,直线l:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f7b16d65f1b2b8bea8cf4a83fde925.png)
将正方形ABCD分成两部分,记位于直线l左侧阴影部分的面积为S,求面积S关于t的函数解析式及图象.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b351ac1e1ee3320fc5bd49db86cade8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62ec9eb13c5cfca501ff84357595755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f7b16d65f1b2b8bea8cf4a83fde925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58bab2df7b3543042048c7db0681602c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/c20955b9-61e9-4b33-a004-123a774a4c46.png?resizew=161)
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20-21高一·江苏·课后作业
解题方法
3 . 已知
是定义在
上的偶函数,当
时,
,则不等式
的解集是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ae36882715e73c2c82b1565ae83cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36da42f6698c859c256740b26321e53.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 函数
是定义在
上的增函数,其中
且
,已知
无零点,设函数
,则对于
有以下四个说法:
①定义域是
;②是偶函数;③最小值是0;④在定义域内单调递增.
其中正确的有_____________ (填入你认为正确的所有序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3948040e6c6c3b342a95519ecfee56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723d0b8c527db966b42ee0773c3bb45b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
①定义域是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ce5058825399b6c7c5969b8adbab1c.png)
其中正确的有
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