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If set A = {a,b,c,d} and set B = {b,c,d,e}, which if the following is void relation from A \rightarrow B ?

  • Option 1)

    \left \{ (a,e); (b,d) \right \}

  • Option 2)

    \left \{(a,a) ; (d,e)\right \}

  • Option 3)

    \left \{(b,b) ; (c,c)\right \}

  • Option 4)

    \left \{(b,c) ; (c,b)\right \}

 

Answers (1)

best_answer

As we have learnt,

 

Void relation -

No element in the relation.

- wherein

\phi \subseteq AXA

 

 (b) is not a relation since (a,a) is not present in relation A\rightarrowB.

 


Option 1)

\left \{ (a,e); (b,d) \right \}

Option 2)

\left \{(a,a) ; (d,e)\right \}

Option 3)

\left \{(b,b) ; (c,c)\right \}

Option 4)

\left \{(b,c) ; (c,b)\right \}

Posted by

Himanshu

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