1 . 求下列各式中
的值:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019671d3251530f4339d4c6b48413e54.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e462f78278d5701f1d0a95e837b7579b.png)
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2 . 求下列各式中
的值:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0fc0ada5f36217c966116ff84aac25.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0fc0ada5f36217c966116ff84aac25.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2010778c9d9c178d9c2445ba2ace1e7.png)
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3 . 求下列各题中的
的值.
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c757c499fe96095caa6255e28c63f2b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9cc54b8548f214afe638a658259289.png)
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4 . 求下列各式中
的值.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0f13b2dd2bfeef625ea12d2c91a6a6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0f13b2dd2bfeef625ea12d2c91a6a6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/537360de24cabfbc1972c83396c5bdf5.png)
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5 . 解下列方程(组):
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55d6defc2dd6379bb1dfcc2b586576f.png)
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55d6defc2dd6379bb1dfcc2b586576f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2dc8a084933c1ff3d1ca5bb0c37724.png)
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6 . 求下列各式中的x.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09613568786cd81af25be76ff8454fcc.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db876f7928b2167a655d71d90f2f4631.png)
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7 . 求下列未知数的值:
(1)
;
(2)解方程组:
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/125f40582beae4c3a0c1f1d21b927c69.png)
(2)解方程组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef69aecf592a3d5607061a3b78a0f44f.png)
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名校
8 . (1)计算:
;
(2)解方程:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb12316ea3a6d97f5d860d045a8714e.png)
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a7001b532b155df6d870d15bfaaf47.png)
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9 . (1)计算:
;
(2)计算:
.
(3)解方程:
;
(4)解方程
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba682aee5a7e7bdd83981fa6d8e2b84.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85ae98c993769da1878dbbad446a976d.png)
(3)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a836c7f8009e5b85389301960d96b0a.png)
(4)解方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0396bcc1cefbcadded14673bcfcccb8d.png)
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