If a = {5, 6, 7, 8, 9}, B = {X : 3 < X < 8 and X ∈ W} and C = {X : X ≤ 5 and X ∈ N}. Find: a ∩ B and (A ∩ B) ∩ C - Mathematics

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Sum

If A = {5, 6, 7, 8, 9}, B = {x : 3 < x < 8 and x ∈ W} and C = {x : x ≤ 5 and x ∈ N}. Find: 
A ∩ B and (A ∩ B) ∩ C

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Solution

A = (5, 6, 7, 8, 9)

B = (4, 5. 6, 7)

C = (1, 2, 3, 4, 5)

A ∩ B  = (5, 6, 7)

(A ∩ B) ∩ C = (5)

Concept: Distributive Laws
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Selina Concise Mathematics Class 8 ICSE
Chapter 6 Sets
Exercise 6 (D) | Q 3.3 | Page 72
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