Question

Let A =
{1, 2, 3, 4} and B = {5, 7, 9}. Determine
(i) A × B (ii) B × A
(iii) Is A × B = B × A ?
(iv) Is
n
(A × B) =
n
(B × A) ?

Answer 1

@dan815

Answer 2

A X B = ? A intersect B?

Answer 3

ok How to do it Sir ?

Answer 4

if that means intersect
A X B = 0

B X A = 0

Answer 5

no this is not intercect

Answer 6

intersect*

Answer 7

oh ok nvm

Answer 8

cross product xD?

Answer 9

oh i see ok

Answer 10

its the set of all possible pairs
{1, 2, 3, 4} and B = {5, 7, 9}. Determine
(i) A × B
{(1,5),(1,7),(1,9),(2,5),(2,7).....}

Answer 11

and order in subset doesnt matter right

Answer 12

correct

Answer 13

ya ok

Answer 14

no its 12