If n(A) = 12 and n(B) = 15 where A and B are non empty sets , find n(A×B) .
Answers
Answered by
0
Answer:
180 is the answer by my knowledge
Answered by
0
Say A has x elements and B has y elements in total.
Their cartesian product A×B will have x×y elements.
Hence if they have n elements in common. n
2
common elements are present in the products A×B and B×A
Similar questions