1 . 计算下列各式的值.
(1)
;
(2)
且
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10b9c76ca7fef1e75756338d2591d88.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5275acda688320ba57ceac2770bf9228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
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2 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8a3d52a0e3fedf3d3db293f03025f8.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce1c40531a0dfeaa7fee827c945feca.png)
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3 . 计算下列各式的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc6e6fb2c47815e2930aaa9fc1ae45a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f7124df45081542e6bb46aaa4276bd.png)
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4 . 计算下列各式的值:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d66234d5f302f5f2dcbf50b4f57540.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d66234d5f302f5f2dcbf50b4f57540.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0468a5b8620530a7386f1531f3373867.png)
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5 . 已知函数
.
(1)证明:若
,则
.
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673576a574e3d96558e88470acb353e4.png)
(1)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419504736c4934f6e0df4114c3743944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2698a5500308daa68bc4c38d5caab41.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1fc096ef680882a2d924eeaf92be067.png)
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6 . 计算以下式子的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496bd11f002c30b39b8ee3ef6e01ae6d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0ba75e58daf7d217009a1ae74335a2.png)
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7 . (1)若不等式
的解集为
,求不等式
的解集.
(2)
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d352696b1a8291c26d58dd82bf70754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac55d420e554e9a8352c1523a3e0043e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a8b0f5522ce8d7f55f681f3a01de80.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7dad6c7a72a57c472da8acf556bf22.png)
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8 . 已知
,
,
.若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478ad32c13f70688c169cb4d26486990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1c6f686681d7640cd71ed82b9f07e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2894f7dc258923ff65b0d274625d4234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49171e4cc6cea69ea860059ab957085c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85518b92391c7d8776a79102595ecba5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-11-15更新
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9 . 已知实数
,且满足
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0912df22a8003d8600e2244cf8d88405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/706ed0716ee44afca6d595b140755d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51442bf0ef97e173588b54ee77db26b5.png)
A.![]() | B.![]() | C.![]() | D.3 |
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2023-02-17更新
|
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