观察下列各式:
①
;②
;③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50bf573858898b714bb790a2487d4a39.png)
(1)请根据以上规律,写出第4个式子: .
(2)请根据以上规律,写出第
个式子: .
(3)根据以上规律计算下列式子的值:
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f46d2748c9411018b3bb2134cbd662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca84e2db65efe3647aba894f55071678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50bf573858898b714bb790a2487d4a39.png)
(1)请根据以上规律,写出第4个式子: .
(2)请根据以上规律,写出第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)根据以上规律计算下列式子的值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636f11997eb2deed35d6cc9e38e70061.png)
22-23七年级上·浙江嘉兴·期中 查看更多[2]
更新时间:2022-12-08 10:04:40
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