Question

if A and B are two disjoint sets n(A) =15 and n(B)=10 find n(AUB)​

Answer 1

Answer:

Given :-

A and B are two disjoint sets.

n(A) =15 and n(A)=10.

To find :- n(AUB).

Solution :-

As they are disjoint sets therefore n(A n B)= 0.

n(AUB) = n(A) + n(B) - n (A n B)

= 15 + 10 - 0

= 25

Answer :- n(A U B) = 25.

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Answer 2

Answer:

if A and B are two disjoint sets n(A) =15 and n(B)=10 then