1 . (1)已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8690c5b4f4e2f9f13e2a94da1a688ecf.png)
______ ;
(2)若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b059c195ed8806d208984e89f400692.png)
______ ;
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf6266593c04e6cc80b462da609828.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8c9f990fc696c4b27d02cb9e92fe9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8690c5b4f4e2f9f13e2a94da1a688ecf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb39c8e18752c1348b067e83b3022e46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8504e8973f9af7a594d199e1eca01ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b059c195ed8806d208984e89f400692.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bbf6266593c04e6cc80b462da609828.png)
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解题方法
2 . 已知
,
,若
,则
的最小值为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254aebe3ef7eabdf41e46c1cd857c705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df852e5c8d439fbf69f83fa9e080a638.png)
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3 . 已知
(
且
),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b81ade5cba63dff18d65b24280611824.png)
_________ .(结果用
表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/805a0a65d8120873f0a9a22bcff2d399.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6027c04510bd896d5106eab149f31b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b81ade5cba63dff18d65b24280611824.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070c85abc0c7a798f5100c04a7adc35d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070c85abc0c7a798f5100c04a7adc35d.png)
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5 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727088002886910f1b8bff4492c8f453.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0fa0035770a41d223aadf0a1c5e186b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727088002886910f1b8bff4492c8f453.png)
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6 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecf7f87d69b67bed0df245c5e9823d3.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecf7f87d69b67bed0df245c5e9823d3.png)
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7 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df558289b30e640381bbf406fae2babf.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df558289b30e640381bbf406fae2babf.png)
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8 . 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069ca5e95bb829227579e94b2fce85b4.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069ca5e95bb829227579e94b2fce85b4.png)
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9 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48026d7b5fda427199a5834fa49d797e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48026d7b5fda427199a5834fa49d797e.png)
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10 . 计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e24450a79ae6af098b01117001e4d289.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e24450a79ae6af098b01117001e4d289.png)
您最近一年使用:0次