Question

Let u equal to 1, 2, 3, 4, 5, 6, 7 and a is equal to 2,4,7 and b is equal to 3, 5 and c is equal to 1, 2, 4, 5,7 find a is union b intersection to c and b minus a union to a minus c

Answer 1

Answer:

U = { 1, 2, 3 ,4, 5, 6, 7 }

A = { 2, 4, 7 }

B = { 3, 5 }

C = { 1, 2, 4, 5, 7 }

A ∪ B ∩C = ?

A∪B = {2, 3, 4, 7 }

A∪B∩C = { 2, 4, 7 } answer 1

(B - A)∪(A - C) = ?

(B - A) = { 3, 5 }

(A - C) = { ∅ }

(B - A) ∪ (A - C) = { 3, 5 } - { ∅ } = { 3, 5 }