2023高三·全国·专题练习
1 . 当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b5d89ce8fe509bfc065e1513ee7d9a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b5d89ce8fe509bfc065e1513ee7d9a.png)
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2023高三·全国·专题练习
2 . 若a,b互为倒数,m,n互为相反数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d98580a3ae8f35e8b82e8af725ebe2.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d98580a3ae8f35e8b82e8af725ebe2.png)
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2023高三·全国·专题练习
3 .
的整数部分为
,小数部分为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/775abf5a82b93edbe3898daa0ea0d2a6.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f1317554141fdb835e423e7aae3a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/775abf5a82b93edbe3898daa0ea0d2a6.png)
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2023高三·全国·专题练习
4 . 要使关于x,y的多项式
不含三次项,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10197edbf9581a1c28795d3a01fac490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9817a48b819ab971e79bad7b20250294.png)
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2023高三·全国·专题练习
5 . 用科学记数法表示0.00000021______ .
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2023高三·全国·专题练习
6 . 因式分解
_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8efda92f30072ea48ed4c534f6c6ab04.png)
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2023高三·全国·专题练习
7 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0929d903c568aae533ada000885f2cad.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a9a6583783843cd2f0310dce288a550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0929d903c568aae533ada000885f2cad.png)
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2023高三·全国·专题练习
8 . (1)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2738d9a4fb40095ecd1eac92a172368.png)
______ .
(2)计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e759be8e6f6852d78986027c301da8.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b12dc353dff8ccce23d94bfb618cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2738d9a4fb40095ecd1eac92a172368.png)
(2)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e759be8e6f6852d78986027c301da8.png)
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2023高三·全国·专题练习
9 . 已知
,则当
时方程的解为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc6691d4081ce6b16ca6be912f665fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
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