定义:若
,则称a与b是关于3的平衡数.
(1)4与______是关于3的平衡数,
与_____是关于3的平衡数.(填一个含x的代数式)
(2)若
,
,且c与d是关于3的平衡数,若x为正整数,求整数k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8792eaab0b6464e5d07436c64aa751a2.png)
(1)4与______是关于3的平衡数,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61d4e7a231ec506e0052bab5c45375a7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/101df2ebb96cfd0e139ff3cf0d189fe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cec964893a3d24439647823bb432037.png)
更新时间:2024-03-03 10:17:14
|
相似题推荐
解答题-计算题
|
适中
(0.65)
【推荐1】有理数a、b、c在数轴上的对应点的位置如图所示:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/d5e9ed37-1453-42f3-ac11-1d4fc4e04fc4.png?resizew=288)
(1)用“>”“<”或“=”填空:
_____0,
______0,
________0;
(2)化简:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/4/d5e9ed37-1453-42f3-ac11-1d4fc4e04fc4.png?resizew=288)
(1)用“>”“<”或“=”填空:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0156b1dc7a6215cfaa165f3cacbd698b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8409329b550296446a936d97c491ca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9db8d3facff8f90f28a936fc5b3ab878.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b36f596c719c466c040a13f6587e3ee.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知
,将关于x的方程
记作方程◇.
(1)当
,
时,方程◇的解为 ;
(2)若方程◇的解为
,写出一组满足条件的k,b值:
,
;
(3)若方程◇的解为
,求关于y的方程
的解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c8dfa0fb17907bb65f5906fe342e3c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0cded0d92fb3006a7be2b60652acfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f0220fc8b94dd476098abdc022d2745.png)
(2)若方程◇的解为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dfd174b01665597f43659a0c9585d80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2319e1b57c48f49362ea7fe08058d952.png)
(3)若方程◇的解为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb3113d4606a96a054f2cb98cf0409e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3bffa5a73e58e9b2c5e636d01ad9d12.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】关于
的一元一次方程
,其中
是正整数.
(1)当
时,求
的值;
(2)若方程有正整数解,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b869a46ec4a5212a0a79f487706d3a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ace82d9a163e2dc42dc5ab45746b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若方程有正整数解,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次