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Set A = {2, 4, 6}, Set B = {2, 4, 6, 8, 10, 12}. Now what is the possible number
Set A = {2, 4, 6}, Set B = {2, 4, 6, 8, 10, 12}. Now what is the possible number
游客
2024-01-12
53
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问题
Set A = {2, 4, 6}, Set B = {2, 4, 6, 8, 10, 12}. Now what is the possible number of Set C, such that A is a subset of C and C is a subset of B? ________.
选项
答案
8
解析
A是C的子集,说明C一定包含2,4,6;C是B的子集,所以C有可能(有或无)包括8,10,120这三个数字每个都有“选择”和“不选”两种方案,因此答案是2×2×2=8。
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