计算:
(1)4
+
-
+4
; (2)
;
(3)
; (4) (2-
)(2+
)+(-1)2 019(
-π)0
(1)4
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280e36eef811c4ef5056fe859d2cc896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd4cee6655a37fc8243928b5dbb09fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ec59be10b39215fc8f6bf1ec53c9c9.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842f99fcceddc31a3b184708ebaeef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
更新时间:2019-08-12 21:07:32
|
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解答题-计算题
|
适中
(0.65)
【推荐2】阅读下面解题过程.
例:化简
.
解:
.
请回答下列问题.
(1)归纳:请直接写出下列各式的结果:①
__________;②
__________.
(2)应用:化简
.
(3)拓展:
__________.含
的式子表示,
为正整数)
例:化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdc962216ff2dbfe89948a4f552a26d.png)
解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c491e0e15e702df96912daa77862d11.png)
请回答下列问题.
(1)归纳:请直接写出下列各式的结果:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8eeda72ad32a46ee0b5b5582e7fee5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4fb78deec866db91453a46011272a4c.png)
(2)应用:化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa29395ae0566e4bdc6f4f9bcbdc4a6.png)
(3)拓展:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635ebd2792da083513ef959f58d2cba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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