Functions Question 351

Question: The Cartesian product of two sets P and Q i.e., $ P\times Q=\phi , $ if

Options:

A) either P or Q is the null set

B) neither P nor Q is the null set

C) Both (a) and (b)

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

[a] If either P or Q is the null set, then $ P\times Q $ will be an empty set, i.e., $ P\times Q=\phi $ ,