Let and . Then the number of elements in the relation\\ divides\\ and divides is...

(c) : divides \\ Each element has 2 choices.\\ divides \\ Each element has 2 choices.\\ Total number of relation is,...

Let A = { 2,3,4} and B = { 8,9,12}. Then the number of elements in the relation R = { ( ( a_{1},b_{1} ), ( a_{2},b_{2} ) ) in (A X B,A X B):a_{1} divides b_{2} and a_{2} divides b_{1}} is: Relation (Mathematics)

Let

A = \{ 2,3,4\}

and

B = \{ 8,9,12\}

. Then the number of elements in the relation\\

R = \{\left( \left( a_{1},b_{1} \right),\left( a_{2},b_{2} \right) \right) \in (A \times B,A \times B):a_{1}

divides\\

b_{2}

and

a_{2}

divides

b_{1}\}