Question

1.
If P = {a,b,c} and Q = {9}, find (PxQ)and (QxP). Show that (PxQ)note qual to(QxP).​

Answer 1

Answer:

P×Q={(a,9),(b,9),(c,9)}

Q×P={(9,a),(9,b),(9,c)}

so P×QIS NOT EQUAL TO P×Q

BUT IN BOTH CASES NO.OF ELEMENTS or Cardinal number is equal