计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a86f39c86224d9ab0afcbeeef93cce.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c07a6e8a910fd8b04df492772afcbaa3.png)
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80a86f39c86224d9ab0afcbeeef93cce.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c07a6e8a910fd8b04df492772afcbaa3.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c283eac3f46d0f6de24aa1b404ec2d8.png)
更新时间:2023-03-29 21:18:00
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相似题推荐
解答题-计算题
|
适中
(0.65)
【推荐1】探究过程:(1)
;(2)
;(3)
;(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeec52750efc87fa10f955f61060eaa8.png)
观察计算过程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91346d1a113e485408a8eded742dff0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37aff5b7675349cf522adac0ccf4d349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2961865f85b4d4e697ba40e7e37830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03bdd020af05d660c91743db7dde842.png)
(1)按照上面的思路解法,计算
;
(2)请你用含
的式子表示上面过程中的规律;
(3)应用根据上面解题方法解决下面的数学问题:
如图,已知图1是边长为
和
的两个正方形,图2是由图1通过切割后拼成的一个大正方形,请求出大正方形的边长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f44167e3afb8a07fa398a4e58803182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7be4eee5558bdb55eb7d6e3e33cd77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21a3f055539dd4489ab687a7c3b7a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeec52750efc87fa10f955f61060eaa8.png)
观察计算过程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91346d1a113e485408a8eded742dff0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37aff5b7675349cf522adac0ccf4d349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2961865f85b4d4e697ba40e7e37830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03bdd020af05d660c91743db7dde842.png)
(1)按照上面的思路解法,计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c1112c55ee5ff3dbbd927623eaf2be.png)
(2)请你用含
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b829d3ded5f93007d3ba22f2a862efe.png)
(3)应用根据上面解题方法解决下面的数学问题:
如图,已知图1是边长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80e761961b7fdc0bea8bf2739c9f1f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb3740f4cb7b65e6c0185a3ed2517f0.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
名校
【推荐2】计算:
(1)
;
(2)
;
(3)先化简,再求值:
,其中
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4e10111cf5b9e16d5f82d5bc4983ab.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7cbe2b9add226e5b428269ba209dc9.png)
(3)先化简,再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39ea96a9220ded6130ce174e8c9a0f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f3fa679bb55ded25a9b72a8e788cb1.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐2】(1)计算:
;
(2)先化简
,然后从
的范围内选取一个合适的整数作为
的值代入求值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa03b02138ebb8429f25157f21206b6.png)
(2)先化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/197c2e0f31c8231cceff7fcfb4fcfa5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c1fc90a6092b25ac0ee06fda1a7971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐1】小芳解决问题:已知
,求
的值.她是这样分析与解的:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76a32495d8f0b773fc69b681a42b5bc1.png)
=
,
∴
,
∴
,
,则
,
∴
,
请你根据小芳的分析过程,解决如下问题:
(1)化简:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693257d99ed892042da7e334324df407.png)
(2)若
.
求代数式
的值;
求代数式
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80236b37de6f299b5ff05d1ff29850c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f3dac8de3d898f0dca07d13691f7140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76a32495d8f0b773fc69b681a42b5bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7db8220778c1393408ca223d11f1f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afbcae63df659191fc769d8764d56ef1.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f212444af57a69adef95ab6ca4dcb3d4.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d552d4566b2a1e8818b01b5290ab0a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0305b24ae0c310772b0a93f3d92161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6601c927f4fa7028557c1f1b128cc2d.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5be5b0ff35f61af7a1ac0a2f486141.png)
请你根据小芳的分析过程,解决如下问题:
(1)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693257d99ed892042da7e334324df407.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab27ecd6a820dc891268e3aa55f3e98f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4c3415df69a347d4a9c9e79995f676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e08100c0e3badb3f965e2e031cb20de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11b9c23e783011badd56c0da71ae8225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51bc07c84da9c8a5e4add9a744f717ff.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知:
,
,若x的整数部分是m,y的小数部分是n,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f132683649a771f55ad4d63210e3b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3ece8aabb05e6654669190a344a28d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef04cc8b22bd83205b1d6fb9fec7ed7.png)
您最近一年使用:0次