已知
,
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7bd466d65409c10c1a1ce60a3c5ea1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d12a3636365d08943ff65fd7109c024.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
更新时间:2022-09-13 20:17:43
|
相似题推荐
解答题-计算题
|
适中
(0.65)
【推荐1】计算:
(1)
; (2)
;
(3)
; (4)
;
(5)
; (6)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3860ab3ae26f44e3b98f7e7cf120dbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6120c6d133ea052a1be11710c1364c55.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed41d548bd32c9262a6072260e76960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1477d5f1dab5dd9fc1a15f2da3aecd1a.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0580d4edd509c5693868aa0f04dfa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff1c0e8c70a21973a140eaecbf9907b.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】数学活动课上,老师准备了若干个如图
的三种纸片,
种纸片是边长为
的正方形,
种纸片是边长为
的正方形,
种纸片是长为
、宽为
的长方形,并用
种纸片一张,
种纸片一张,
种纸片两张拼成如图
的大正方形.
(1)观察图
,请你写出下列三个代数式:
,
,
之间的等量关系;
(2)若要拼出一个面积为
的矩形,则需要
号卡片
张,
号卡片
张,
号卡片______张.
(3)根据
题中的等量关系,解决如下问题:
①已知:
,
,求
的值;
②已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/001277e0-d5ba-4eb1-964c-6a66e58b4532.png?resizew=359)
(1)观察图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852e23a0022ffca4e65022de59697c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
(2)若要拼出一个面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300799fa098f77fd87017c8d65c396f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(3)根据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
①已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff7e62312dbd1cd5b50a6dc7fdfc166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa41ed27eda47bedcedc65785bbb1a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c69ab6074d4508577fa78da21b9734f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00cd9210245d1801b7c07eeaed9a199f.png)
您最近一年使用:0次