计算:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c46a3ca756c86cb1177e6ba40b5680b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69cd01334478dcf4c7760dc2c5e7fc67.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32632683f76aad9606b01745a81cd9a.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b9d1831e9b248be069b06d6e23441b.png)
更新时间:2022-10-23 17:02:53
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相似题推荐
解答题-计算题
|
较易
(0.85)
【推荐1】阅读下题中的计算方法,解决问题.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a607e0eac798aae984f7f14d90c0601e.png)
解:原式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d68f3dc9a3247eefa1dc7d895619cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca3180819ad4eb0efdd0fd8c88775c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cbc09b6bdb69fc7bfee9f7f23f0217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad1de6531059757f9d3721d4650e5a7.png)
上面这种方法叫拆项法.
仿照上面的拆项法可将
拆为_________,
拆为_________.
(2)类比上述计算方法计算:
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a607e0eac798aae984f7f14d90c0601e.png)
解:原式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d68f3dc9a3247eefa1dc7d895619cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca3180819ad4eb0efdd0fd8c88775c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6cbc09b6bdb69fc7bfee9f7f23f0217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad1de6531059757f9d3721d4650e5a7.png)
上面这种方法叫拆项法.
仿照上面的拆项法可将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa3bcb097da3bbc7e058d598d7488a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd89427a664b49522c593baaf4f8c45.png)
(2)类比上述计算方法计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c73579a6195163b40c218cf3dcfaf004.png)
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