1 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ ;若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb9decd270397136f2857a27df3d4ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f6e2d1e7c693a6cf321088131b469d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
您最近一年使用:0次
2 . (1)计算:
.
(2)求等式中
的值:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45bb3692bb157ed05ad4f645b2f4399.png)
(2)求等式中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597896e90f78e2012c094f499748989b.png)
您最近一年使用:0次
3 . 求下列各式中的x的值.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a85485c71638ff754cee1e8e8804863.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138e0134d9a586326d403768f33178f8.png)
您最近一年使用:0次
4 . 解下列方程及方程组:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8806805812441c54b767f8606c7a65b3.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec3b5417ab7c672160a748d7863e785.png)
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8806805812441c54b767f8606c7a65b3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec3b5417ab7c672160a748d7863e785.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c1b4899b5e67988c23f7463c2346b62.png)
您最近一年使用:0次
5 . (1)解二元一次方程组:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02aa3c3eb5c8ec0a226d67dc14f6f80.png)
(2)求等式中x的值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02aa3c3eb5c8ec0a226d67dc14f6f80.png)
(2)求等式中x的值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9cc54b8548f214afe638a658259289.png)
您最近一年使用:0次
6 . 求等式中x的值:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5ae3c69fab84f0e22ad26abdfd89ae.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5ae3c69fab84f0e22ad26abdfd89ae.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e6bfbb88865bae54c9730b074062e2.png)
您最近一年使用:0次
7 . 解方程或方程组:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c42ad3e256757164efc445e7a9ccbc.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a600dde06bcaf7c0297884d701e9897f.png)
您最近一年使用:0次
8 . 已知正实数
的两个平方根分别是
和
.
(1)若
,求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e40043f180d0ab7f2b6235f9fbe4f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
9 . 依据图中呈现的运算关系,回答下列问题.
__________.
(2)若
,求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f9120ba7a40ea6f272a3f3b5b91fee.png)
您最近一年使用:0次
10 . 求出下列各式中x的值.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/959f4a2a92fe074d99602b6f19314752.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3791d1f87f28256b54c75a99d376596.png)
您最近一年使用:0次