一、选择题:在每小题给出的四个选项中,只有一项是符合题目要求的.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe20dc0f6fd4e876ad7b1219479ee186.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 函数奇偶性的应用 比较函数值的大小关系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c0d2781306051c802c8f90eb0475db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832f2474efe89961ef41e884da7660c.png)
A.0 | B.1 | C.2 | D.3 |
【知识点】 函数图象的应用
二、填空题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4560cb2e8f09b0eb966387c3c92fce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbce94ed3767f7f75cfd3499e727d452.png)
【知识点】 求分段函数解析式或求函数的值解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee29d3bdf8590885f452db294ec45ed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91a3f32fd68feeec658f414e4b0e1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3cc66b811ad2395efe04d93b61c711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6072b0cdb2d9a3fbf5a4dd76263b3f88.png)
【知识点】 函数奇偶性的应用 由函数的周期性求函数值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48dc6d0827a159050e3fa55164f258b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecaf15f775bd33cc59d4fb510c16977b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f102094d26267fffe55dac0234f7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
【知识点】 函数基本性质的综合应用 函数奇偶性的应用 根据函数的单调性解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4603a0649086014e284429a937d1a0d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b4e779dbe50e70e7abcd8887e402a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c0c037867665979b6dc75fb995f9ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2221a28910593f4d64872e09da8ea3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
【知识点】 函数奇偶性的应用 根据函数的单调性解不等式 由函数奇偶性解不等式
三、解答题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e332830cab27f82409e54b186f297b60.png)
(1)求函数f(x)的定义域;
(2)判断f(x)的奇偶性并证明.
【知识点】 具体函数的定义域解读 函数奇偶性的定义与判断解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c98f22ddd63283d5fc554eae3b553d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f6d90764805f7b99713bdb32f993ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
【知识点】 根据指数函数的最值求参数 根据二次函数的最值或值域求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9a17473fba8249a0e8972efacf0573.png)
(1)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9a17473fba8249a0e8972efacf0573.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa9a17473fba8249a0e8972efacf0573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5877b36b0def7389b8fb66e8491644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5223ece2f8f76850c49e2505304532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7bec2b5d68a56315b5c84adea9e35b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e9bfba52403386ec9c8cd84b816708.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b39c79fb2e1283c4fa5cf4d72514e3a5.png)
(1)判断并证明f(x)和g(x)的奇偶性;
(2)求g(x)的值域;
(3)若∀x∈R,都有|f(x)|≥|g(x)|成立,求a的取值范围.