Question

Q:- Find the union of each of the following pairs of sets:
(i) A = {x : x is a natural number and multiple of 3}
B = {x : x is a natural number less than 6}
(ii) A = {x : x is a natural number and 1 < x ≤ 6}
B = {x : x is a natural number and 6 < x < 10}
(iii) A = {1,2,3}
B = ∅​

Answer 1

Step-by-step explanation:

(I) A=(3,6,9,12,.....)

B={1,2,3,4,5)

AUB=(1,2,3,4,5,6,.....) answer

(ii) A={2,3,4,5,6}

B={7,8,9}

AUB={2,3,4,5,6,7,8,9}answer

(iii) A={1,2,3}

B={ }

AUB={1,2,3} answer

Answer 2

Answer:

1) A = { 3, 6, 9, 12, 15, 18,.....}

B = { 1, 2, 3, 4, 5, 6 }

A U B = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 15, 18,.......}

2) A = { 2, 3, 4, 5, 6 }

B = { 7, 8, 9 }

A U B = { 2, 3, 4, 5, 6, 7, 8, 9 }

3) A = { 1, 2, 3 }

B = ø

A U B = { 1, 2, 3 }

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