计算:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92642bb060590c4fab267803e81e6888.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58d9410f06e882ed6647c0d9cd5df39.png)
更新时间:2022-01-22 11:29:36
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解答题-计算题
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较易
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【推荐1】(每小题7分,共14分)
(1)计算:(-1) 2÷
+(7-3)×
一(
)0;
(2)如图,在□ABCD中,点E是AD的中点,连结CE并延长,交BA的延长线于点F,求证:FA=AB.
(1)计算:(-1) 2÷
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(2)如图,在□ABCD中,点E是AD的中点,连结CE并延长,交BA的延长线于点F,求证:FA=AB.
![](https://img.xkw.com/dksih/QBM/2011/11/20/1573286500573184/1573286528139264/STEM/ba870c79c59a4907b0e7fc5c51e5cc73.png?resizew=129)
您最近一年使用:0次
解答题-计算题
|
较易
(0.85)
真题
【推荐2】(1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665a40c99d9b9dc3d6e88ac25f114b90.png)
(2)下面是小彬同学进行分式化简的过程,请认真阅读并完成相应任务.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4f864af59e70bda88222e48f8b6a80.png)
第一步
第二步
第三步
第四步
第五步
第六步
任务一:填空:①以上化简步骤中,第_____步是进行分式的通分,通分的依据是____________________或填为_____________________________;
②第_____步开始出现错误,这一步错误的原因是_____________________________________;
任务二:请直接写出该分式化简后的正确结果;
任务三:除纠正上述错误外,请你根据平时的学习经验,就分式化简时还需要注意的事项给其他同学提一条建议.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665a40c99d9b9dc3d6e88ac25f114b90.png)
(2)下面是小彬同学进行分式化简的过程,请认真阅读并完成相应任务.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4f864af59e70bda88222e48f8b6a80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216f89876c8c12fd4ff0d0a7d6542ae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800da192682b1e3cfcdeb6e0331d2196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f825dd62927a57aa81d684931b12587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b702c6d991379cf6ad32df287849473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256709058cda36f1ee706fa3cda4931a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1651d1daea99729f02b0579f4d458f9e.png)
任务一:填空:①以上化简步骤中,第_____步是进行分式的通分,通分的依据是____________________或填为_____________________________;
②第_____步开始出现错误,这一步错误的原因是_____________________________________;
任务二:请直接写出该分式化简后的正确结果;
任务三:除纠正上述错误外,请你根据平时的学习经验,就分式化简时还需要注意的事项给其他同学提一条建议.
您最近一年使用:0次