作文号作业帮,慧海网手机教育考试作业频道
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作业帮
时间:2024/07/05 13:50:29
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1、10/3
-3/10
10/3
2、0
3、-10(两者互为相反数)
4、13(勾股定理)
60/13(由面积相等)
5、12cm^2(高为4)
6、y=-5/3 *x
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