登入
Mathematics for IGCSE & O level - Sets (Section 1 - No. 45)
Which symbol is used to represent 'not an element of'?
∈
∉
⊆
∁
解释
The symbol ∉ represents 'is not an element of'.
评论 (0)
登录发表评论
广告
允许 javascript 正确加载此页面