Math, asked by sashanksasi481, 4 months ago

If A={1, 2, 3, 4, 5}, B={2, 4, 6, 8} then find n(AUB)-n(A,B).
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Answers

Answered by Sirat4
0

Answer:

n(A∪B) - n(A∩B) = 5

Step-by-step explanation:

A={1, 2, 3, 4, 5}, B={2, 4, 6, 8}

A∪B = {1, 2, 3, 4, 5} ∪ {2, 4, 6, 8}

        = {1, 2, 3 , 4 , 5 , 6 , 8}

n(A∪B) = 7       (no. of elements )

A ∩ B = {1, 2, 3, 4, 5} ∩ {2, 4, 6, 8}

          = { 2, 4}

n(A∩B) = 2

 n(A∪B) - n(A∩B)

= 7 - 2

= 5

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