Math, asked by Asghar1440, 11 months ago

If A={1,2,3,5,7} and B{2,4,6,7}, then find n(AuB)

Answers

Answered by sandy1816
1

Step-by-step explanation:

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

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

A∩B={2,7}

n(A∩B)=2

n(AUB)=n(A)+n(B)-n(A∩B)

=5+4-2

=7

For 2 marks....

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