已知a、b互为相反数,c、d互为倒数,x的绝对值为3,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040e148bddaa38293fc0f64bd1feba91.png)
更新时间:2023-04-29 19:30:06
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解答题-计算题
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(0.65)
【推荐1】三个有理数a,b,c,若
,且a与b互为相反数,b是c的倒数.
(1)当n为奇数时,你能求出a,b,c这三个数吗?当n为偶数时,你能求出a,b,c这三个数吗?若能,请计算并写出结果;若不能,请说明理由;
(2)根据(1)的结果,计算
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337862379fff5bef28bd1ffad6d29878.png)
(1)当n为奇数时,你能求出a,b,c这三个数吗?当n为偶数时,你能求出a,b,c这三个数吗?若能,请计算并写出结果;若不能,请说明理由;
(2)根据(1)的结果,计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663bbbc63c48eea6eca829b350f3153e.png)
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解答题-计算题
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【推荐2】(1)已知a是最大的负整数,b是﹣4的相反数,c与d互为倒数,计算:a﹣b﹣cd的值.
(2)已知|m|=3,n的相反数是它本身,计算:m+n的值.
(2)已知|m|=3,n的相反数是它本身,计算:m+n的值.
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【推荐1】已知
,
互为相反数,
,
互为倒数,
绝对值等于
的数,求
的值.
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d48a05d751ad4c65ff092a12aca351e.png)
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【推荐2】已知a、b两数不为0且互为相反数,c、d互为倒数,m是绝对值等于5的数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39f1b43213b25a6236d99a0af0544873.png)
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【推荐2】当
,
时,求下列代数式的值;
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118933cede78675413dbafac24ee008c.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50ff152b247b7fd38e5482a8e3c965f.png)
(3)通过(
)(
)猜测
和
的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce4430b8b9b0c78de693513a7f88915.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118933cede78675413dbafac24ee008c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50ff152b247b7fd38e5482a8e3c965f.png)
(3)通过(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118933cede78675413dbafac24ee008c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b50ff152b247b7fd38e5482a8e3c965f.png)
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解答题-计算题
|
适中
(0.65)
【推荐1】已知
.其中
是关于
,
的多项式.
(1)求多项式
.
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0fc6a708fba32ac28e7e09af40bc44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(1)求多项式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68c0f45fae66cda0920111f95eaeee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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