Question

If B ⊆ A then n(A ∩ B) is


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Answer 1

Answer:

A set A is a subset of set B, denoted, A ⊆ B, if every element x of A is also an element of B. That is, A ⊆ B if ∀x(x ∈ A → x ∈ B). Then, R ⊆ S e.g., R is subset of S. so, we can say that n(B) = n(A ∩ B)

Answer 2

Step-by-step explanation:

the answer is

n ( A∩B).

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