1 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23566cbda64f06277e9c08a7baed1365.png)
(1)当
时,解不等式
;
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23566cbda64f06277e9c08a7baed1365.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
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2 . 关于
的不等式
.
(1)当
时,求不等式的解集;
(2)当
时,求不等式的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec8857ddaaff133851e330382e277ac.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367e788c32187ae2cc97aaa24da1d40d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a4eaa80b44625890339d6a0065c241.png)
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3 . 求下列不等式的解集.
(1)
;
(2)
;
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5745cf45289be15097ed2b6e53a8615c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca412b32382e4a5e45a928b6ac9ce127.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62187941ce5913b6a19ad46120c9d270.png)
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4 . 求下列不等式的解集:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7436cf2e64f40ea5f5a79e8a143dab6e.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7436cf2e64f40ea5f5a79e8a143dab6e.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca412b32382e4a5e45a928b6ac9ce127.png)
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解题方法
5 . 已知二次函数
.
(1)当
时,解不等式
;
(2)若
时,不等式
恒成立,求实数的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b55317a1c20a2cedc82864eadcb2fc34.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b809c7fd4d5d853c923bfa2e5a855d87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d4620b5254a28583ebb68cdf62ecdc.png)
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解题方法
6 . (1)若
,求
的最小值及对应
的值;
(2)若
,求
的最小值及对应
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fad8f9483bfefe012752110111565b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a521cea7396048700a76747d12b232d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解题方法
7 . 已知
的内角
,
,
所对的边分别为
,
,
,且满足
.
(1)求角
的大小;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbf499751193a783bc581d916f348a2.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe29c42302504e7fd8577dbc7d130ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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名校
8 . 已知
为正实数,且
.
(1)求
的最大值;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195d55fe82646a1deeafb3a68676b2db.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fc838e1477179b36ca7481ee2cc1e8.png)
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解题方法
9 . 已知函数
.证明:对
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bb6db5f1d7131b5e49f645af76938d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1f26934baad559d29747572b40b5761.png)
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解题方法
10 . 比较
和
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebbdf016b82114b77efc5345cd104cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e2a951344a38e05f75d461cb2a9650b.png)
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