设
.
(1)化简A;
(2)当
时,记此时A的值为
;当
时,记此时A的值为
,…,解关于x的方程:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0598f57cd5d3ef7bbe3e0217b091e9be.png)
(1)化简A;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1a1611f320c0f358df77aaae3f942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf59c5075f9e6fdf3782b6c0e528237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a3a4a3480610609e4b68b570e04664.png)
更新时间:2022-05-09 18:28:42
|
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解答题-计算题
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【推荐1】如果一个分式的分子或分母可以因式分解,且这个分式不可约分,那么称这个分式为“和谐分式”.
(1)下列分式中,______是和谐分式(填写序号即可);
①
;②
;③
;④
;⑤
.
(2)若a为正整数,且
为和谐分式,
______;
(3)利用和谐分式,化简:
(1)下列分式中,______是和谐分式(填写序号即可);
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ef82320d1d9da90fddfb57386b9b78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c75a13484069758d66df8591dd395822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/148d777e9cc90063db7ad1971fb46d1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86f3c6f2f81239117a70849fa04e95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a254a9a183b1fd17e224bd8c92786e.png)
(2)若a为正整数,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95405720ad48f2c6e7e838fc89f0e01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
(3)利用和谐分式,化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15517c712fb4efeaeb24386910278ed5.png)
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解答题-计算题
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适中
(0.65)
名校
【推荐2】如果两个分式M与N的和为常数k,且k为正整数,则称M与N互为和整分式常数k称为“和整值”如分式
,则M与N互为“和整分式”,“和整值”
.
(1)已知分式
,判断A与B是否互为“和整分式”,若不是,请说明理由;若是,请求出“和整值”k;
(2)已知分式
,C与D互为“和整分式”,且“和整值”
,若x为正整数,分式D的值为正整数t.
①求G所代表的代数式:
②求x的值:
(3)在(2)的条件下,已知分式
,且
,若该关于x的方程无解,求实数m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80096311b0ba73381a9c996b7256f249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
(1)已知分式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a519a5dde8f28e410e079fff28a2c9.png)
(2)已知分式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e194e3753ca55b80796bc91983fb0263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367e788c32187ae2cc97aaa24da1d40d.png)
①求G所代表的代数式:
②求x的值:
(3)在(2)的条件下,已知分式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fc5d3a07d9765f9ac697b9119562d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffca4b723091856d2eb2d78a4f55f6de.png)
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