1 . 计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cc78b3fc64b40f643bcc807105b2e0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7e231171ea71397f5b91382518e5e0.png)
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2 . 计算
(1)计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384387dd6faeb1f405350afa37467cc.png)
(2)求x的值:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206924f8bc760530bc758caec5501ce6.png)
(3)解方程组:
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384387dd6faeb1f405350afa37467cc.png)
(2)求x的值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206924f8bc760530bc758caec5501ce6.png)
(3)解方程组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a7efbb8c1eea834fe5013c87dea0390.png)
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3 . (1)计算.
①
;
②
(
取
,
取
,结果保留小数点后两位);
(2)求下列各式中的x.
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be24a74555def369a2e2d2ed334dca91.png)
②
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d9a5e375b8cced0a5071f14c51cedbd.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d2b3ce9fb5ea795daf6624a8fed1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93af476b03dc29ec3a90af847a4e2dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b038d6b9b5b10372d048d636d1735261.png)
(2)求下列各式中的x.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be24a74555def369a2e2d2ed334dca91.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62fc8d8be1390b7f109e28347d27adf6.png)
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4 . 已知:
是64的立方根,求
的平方根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777c449452f5becca6eee97be89ec1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f12763b7b929dbf2791735248029bac.png)
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5 . 按要求解答下列各小题.
(1)求
的值:
;
(2)计算:
.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8b45f96439ee0187a83c8efbd8c71d.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061db7c108cf2184b6ce2c903df9ff3c.png)
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6 . 房间的面积为
,用150块大小相同的正方形地砖铺设地面,恰好铺满,试求每块地砖的边长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd1b8df4008d6cee7196e2b9d40ec303.png)
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7 . (1)已知
,求
的值;
(2)计算:
;
(3)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7ec01c5228e1cf9df7c2aab8775f50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d239b4d0d3032db4391d79d5b6a8063d.png)
(3)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76cb755a43f49727d1efc37d393b5b9.png)
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8 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f4ef2bda6b6ec597803fceb8da5c0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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9 . 按要求解答下列各小题.
(1)求值:
;
(2)求x的值:
;
(3)计算:
.
(1)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8eb544d22bdc362c26c5dca85c9f196.png)
(2)求x的值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b4471efeca60fa0f1672eb71269c9e.png)
(3)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c7937e56d7f542ff8f33c57c1a961e.png)
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10 . 计算或解方程:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8d92201ce79f371f91372c7e2646db.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b95f6bf7e264183e8135bd72939d61c.png)
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8d92201ce79f371f91372c7e2646db.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b95f6bf7e264183e8135bd72939d61c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc39cb1f734886dbc9126e135663c94.png)
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