解答下列各题:
(1)叙述函数的定义.
(2)求函数
的定义域.
(3)计算:
.
(4)计算:
.
(5)分解因式:
.
(6)计算:
.
(1)叙述函数的定义.
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f9fb315bc5582bb9505c13f8a6cccf.png)
(3)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248c92cdd8a87569869b4c2a7f4b833e.png)
(4)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8602c041eae0bc26846529333c575fb7.png)
(5)分解因式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f78bcdf7a3425b0028e93f98879eb0.png)
(6)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/528cf8cb9963bed582aa731037dc2aea.png)
更新时间:2022-11-07 15:21:00
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【推荐1】求下列函数的定义域:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600b044433ee4a5fa5d412de752fcdaa.png)
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【推荐2】求下列函数的定义域和值域
(1)![](https://img.xkw.com/dksih/QBM/2015/12/1/1572327829463040/1572327835230208/STEM/ab9a73edae884c4fa5682243f4bdf366.png)
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(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7615174c1f705ff69244afc16fd625c.png)
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【推荐1】化简求值:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b923ae6b0f438409ea0fe607eb30f94.png)
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①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db09a66515a0caa4291d1078fc7661a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d8853fba332b78807ebf8f1ac01f30.png)
(2)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471340a9cc0a9bf6331875d3953b8e78.png)
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