使等式
的成立的一对有理数
,
叫做“亲密数对”,记为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
如:因为
,
,所以数对
,
都是“亲密数对”.
(1)若
是“亲密数对”,求
的值;
(2)若
是“亲密数对”,则
是亲密数对吗?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2b2489c62b0173bcfaa77150c8a85b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2137a41f1b29a6db70cebfc397228927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434f284bcddb0178308aa8ef514e4b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/631386549c0cec5981a1da47b05e5d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e0b78171a4d834a3c1fd9a484bd2e2f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f639b41a2fe03c022a8cc26255d112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dd5d284a947adfd658cfdc2bc24b5d1.png)
更新时间:2023-09-21 22:38:39
|
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适中
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【推荐2】计算
(1)
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(2)
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(3)
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(4)
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(5)
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(6)
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(2)
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(3)
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(4)
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(5)
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(6)
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您最近一年使用:0次
解答题-计算题
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适中
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【推荐1】定义一种新运算:对于任意非零实数
和
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(1)计算
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(2)解方程:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee49a12aa42d83de3912ac61820d04a.png)
(3)直接写出不等式
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8c3707e8f819f0b5ab6551ff9cf914.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e025da3ac580ac0ca0841ab8b1ff188.png)
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee49a12aa42d83de3912ac61820d04a.png)
(3)直接写出不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51011a9acf23eea62f5730bf2a528797.png)
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解答题-问答题
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【推荐2】定义:如果
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa4ab2009458c4327dccd81318aa60d0.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e5bdd084aefb0fb2ac945fa947e43d0.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7423a1b0d67831f15441d23387d0ff5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a4ae4aba709f76d22764d45b8f791b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b9f0e2dd522765dab52b5905a0d59d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4bdedc8ea2dcb7a7698661d609a1f6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4f67418e64785491fa7c83d2992391.png)
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解答题-计算题
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适中
(0.65)
【推荐3】定义:如果一个数的平方等于﹣1,记为i2=﹣1,这个数i叫做虚数单位,把形如a+bi(a,b为实数)的数叫做复数,其中a叫这个复数的实部,b叫做这个复数的虚部,它的加、减运算与整式的加、减运算类似.复数的乘方意义与有理数的乘方的意义类似,例如:
(1)i3=i•i•i=i2•i=﹣i
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根据以上信息,完成下列问题:
(1)填空:(﹣1+i)(1﹣i)= ;i﹣4= .
(2)化简:i+i2+i3+i4+…+i2017.
(1)i3=i•i•i=i2•i=﹣i
(2)(2﹣i)+(5+3i)=(2+5)+(﹣1+3)i=7+2i
根据以上信息,完成下列问题:
(1)填空:(﹣1+i)(1﹣i)= ;i﹣4= .
(2)化简:i+i2+i3+i4+…+i2017.
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