若
,
,求
的值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d44cf9e670add1bd7dfdece5010e8b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ef41a5b1dca0d656501523ee58c504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefe1eddc532df5953038ad0d7c7d023.png)
22-23八年级上·广东东莞·期中 查看更多[2]
更新时间:2022-11-26 19:06:04
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相似题推荐
解答题-证明题
|
较易
(0.85)
【推荐1】观察下列等式:
第个等式为:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74a7b29432577b503b64753f10a6181.png)
第
个等式为:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4413bad4bfcb0910e27b52f84a88a8cc.png)
第
个等式为:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146e6a3e5fc81fe76058f29ce902b397.png)
第
个等式为:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd324baceccb65f4620be21a5ed873f.png)
....
根据上述等式含有的规律,解答下列问题:
(1)第
个等式为:是
(2)第
个等式为:是 (用含
的代数式表示),并证明
第个等式为:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d74a7b29432577b503b64753f10a6181.png)
第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4413bad4bfcb0910e27b52f84a88a8cc.png)
第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146e6a3e5fc81fe76058f29ce902b397.png)
第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd324baceccb65f4620be21a5ed873f.png)
....
根据上述等式含有的规律,解答下列问题:
(1)第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
(2)第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
解答题-问答题
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较易
(0.85)
【推荐2】已知:3x=2,3y=5,求3x+y+32x+3y的值.
您最近一年使用:0次
解答题-问答题
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(0.85)
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【推荐1】请解答下列各题:
(1)已知
,求
的值.
(2)已知n为正整数,且
,求
的值.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164b4fcff19ab294ddbf028b72b60794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91906edb583192eb6f6ef25c8b86fd3.png)
(2)已知n为正整数,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0b21f47a17fce09eaeee350672470bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdb464734b2f8b5627819d20f29bb955.png)
您最近一年使用:0次