1.

If A={2,3,4,5,6,7} and {,7,8,9} then n (AUB) and n (A intersection B)

Answer»

Step-by-step explanation:

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

N(A U B) = 8 [ Total no of elements ]

A ∩ B = { 7 }

n(A ∩ B ) = 1

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