题库搜索>问题求解PS-12280
If k = -1, which of the following is (are) true?
I. kk = k
II.|k| = -k
III.k0 = -k
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
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kk=-1=k，所以I成立；|k|=1=-k，所以II成立；k0=1=-k，所以III成立
灭绝人性
条件二 |k|=-k 绝对值怎么为负？ 条件三 任何数的零次方都为1 怎么回事 -K 题目有问题
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2021-07-06 14:25:06
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