设函数f(x)=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e56ddd82bdf45ce876285e016280a6f.png)
(1)若f(a)=1,求a的值
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e56ddd82bdf45ce876285e016280a6f.png)
(1)若f(a)=1,求a的值
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9309deed2680f304d6891c8ed8cacc.png)
更新时间:2019-12-17 12:19:01
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【推荐1】已知定义在
上的偶函数
,当
时,
.
(1)求
的解析式;
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dee50d54f9c52ad203f9c9a49f2d6f7.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de42ce9338db98645feab1a77a68a895.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知
,定义函数
表示不超过
的最大整数,例如:
,
,
.
(1)若
,写出实数
的取值范围;
(2)若
,且
,求实数
的取值范围;
(3)设
,
,若对于任意的
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b45ac51b4df38b55b9ccb47c4956102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc31fcb55d8bae1ccbca89699208ffe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7ed029bb6ee1d46f04b6e47a5c489f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ed846764631643dfe7d81e93cc1f59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a26b301aee62f13ffbf2e3f951ee4bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccffa6b48a4571f8cfe62289609afea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98517d147e79b56b139b9f1cdfda305c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7f1aabedb42bac5d4397d4057c8f1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3b0ec27813138c0d20563c070030c9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解答题-证明题
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解题方法
【推荐1】函数
的定义域为
,对于
,
,
,且当
时,
.
(1)证明:
为减函数;
(2)若
,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df6593a700bf3e89107556454666b787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff4e97d3a81971c5ae6beac821360b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6521ef75f0a05fe62cdfd2fbbe0430b6.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa078bf063c53e4cd50579363c8c7927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1ba2ebffc4289af33c457e879303f4.png)
您最近一年使用:0次
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(0.65)
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解题方法
【推荐2】已知函数
是定义在
上的奇函数,当
时,
.
(l)求函数
的解析式;
(2)求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e99bebf8db0d314aacb2cb1f09bf48c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124f42b924544b7534380d3e459b13c.png)
(l)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f16a6d51219c56d171aa35bfb871912.png)
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