Question

n (a)= 7 and n (b) =5 then maximum number of elements in n( a) intersection b)​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Set A has 7 elements & set B has 8 elements.

Minimum A∪B elements condition: Out of 8 elements of set B, 7 elements are identical to that of set A. In this case A∪B=B & it will have 8 elements.

Maximum A∪B elements condition: A & B are disjoint sets, that no element will be common to them. Then:

n(A∪B)=n(A)+n(B).

A∪B has 15 elements.