Let $A = \{ 2,3,6,7\}$ and $B = \{ 4,5,6,8\}$. Let $R$ be a relation defined on $A \times B$ by $\left( a_{1},b_{1} \right)R\left( a_{2},b_{2} \rig...

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Let A = { 2,3,6,7} and B = { 4,5,6,8}. Let R be a relation defined on A X B by ( a_{1},b_{1} )R ( a_{2},b_{2} ) if and only if a_{1} + a_{2} = b_{1} + b_{2}. Then the number of elements in R is .: Relation (Mathematics) Question | DivineJEE

Let

A = \{ 2,3,6,7\}

and

B = \{ 4,5,6,8\}

. Let

R

be a relation defined on

A \times B

\left( a_{1},b_{1} \right)R\left( a_{2},b_{2} \right)

if and only if

a_{1} + a_{2} = b_{1} + b_{2}

. Then the number of elements in

R

\