Question

If A = {1,3,5,7,9,11} and B = {1,5,8,10}; find A U B and n(A U B)

Select from the Answers below

{1,3,5,7,8,9,10,11} and 8

{1,3,5,7,9,11} and 6

{1,3,7,9,10,} and 5



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Answer 1

Answer:

Option (1)

Step-by-step explanation:

A U B = {1,3,5,7,9,11} U {1,5,8,10}

therefore, AUB = {1,3,5,7,8,9,10,11}

n(A U B) = No. of elements in AUB

therefore, n(AUB) = 8