计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf3aafafe0ed0ac56a5d80325bcff64.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5370091eb963c9972e07c028677ea633.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0daa85417a15a39796c8307d8106f2f7.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf3aafafe0ed0ac56a5d80325bcff64.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5370091eb963c9972e07c028677ea633.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0daa85417a15a39796c8307d8106f2f7.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40bd841d9e18b9d0a75a6c8588039ac3.png)
更新时间:2024-04-18 22:57:48
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解答题-计算题
|
适中
(0.65)
真题
【推荐2】Ⅰ.解不等式组
,并把解集在数轴上表示出来.
Ⅱ.计算:(π﹣3)0+
﹣2sin45°﹣(
)﹣1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd923aa41b0c83d6bb07464bba942506.png)
Ⅱ.计算:(π﹣3)0+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea872287a155776bf38d4a4cab7e464.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ca8b26c3ad6d892590290a2304126bd.png)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐1】有两个十分喜欢探究的同学小明和小芳,他们善于将所做的题目进行归类,下面是他们的探究过程.
(1)解题与归纳
①小明摘选了以下各题,请你帮他完成填空.
= ;
= ;
= ;
= ;
= ;
= ;
②归纳:对于任意数a,有
=
③小芳摘选了以下各题,请你帮她完成填空.
= ;
= ;
= ;
= ;
= ;
= ;
④归纳:对于任意非负数a,有
=
(2)应用
根据他们归纳得出的结论,解答问题.
数a,b在数轴上的位置如图所示,化简:
-![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674e5b7d3bc0bd8912fdde14ea38ad28.png)
(1)解题与归纳
①小明摘选了以下各题,请你帮他完成填空.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2552f90cc338f18e3c0bbd3fd0fc8045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f9dd0564ecc3c07292c9201cc2845f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b144fd0dcbbbc8b4833574c73fd46f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af123432f75538ce525acf036f8e5cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a023b63a00442037af31bd29b96d66a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8931e030a0d8fded1d4c94f7c11b6f6c.png)
②归纳:对于任意数a,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c0f57ea6e7089fb7b417818f664b96.png)
③小芳摘选了以下各题,请你帮她完成填空.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a070ec2e2442e4bc5c8aa4faf7c528.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2143666efe741775af59ac4475ab6b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372b4ec41790c1e3635d8071918d7474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f68926fc4c33a5ba640900312d02030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceec719a54704f1c9e6139983582c120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abad79cdc2398a0617f65c42771ed620.png)
④归纳:对于任意非负数a,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5f6c152fffef5cdf2d12d4309d7757.png)
(2)应用
根据他们归纳得出的结论,解答问题.
数a,b在数轴上的位置如图所示,化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe26afc98326865de611618cca11ce74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674e5b7d3bc0bd8912fdde14ea38ad28.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】矩形ABCD中,动点P从点B出发,以每秒3个单位的速度沿
运动,动点Q从点D出发,以每秒
个单位的速度沿
运动,
,
,设点P的运动时间为t,
的面积为S.
(1)求AD的长;
(2)用含有t的式子表示S,并直接写出t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf7e4f327f981ed213dd90eeaae9d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e194a421418bceb83fc44ea8d593f305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51ece6bb53c3f5bf2da7d9ee5960e44.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/14/7b4522c3-9459-4dbe-b6c9-989515ea077c.jpg?resizew=304)
(1)求AD的长;
(2)用含有t的式子表示S,并直接写出t的取值范围.
您最近一年使用:0次