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22-05-2020
Mathematics

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What is n(A) and n(B) in sets lesson?

Respuesta :

25-05-2020

Answer:

Set membership x ∈ X means x is an element of the set X. ... The set of natural numbers N has elements 0,1,2,3,.... Intersection X ∩ Y is defined by: x ∈ X ∩ Y if and only if x ∈ X and x ∈ Y .

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