Question

Let A = {7,8,9,a,b,c} and B = { 1,2,3,4} , then the number of relations from A to B and from B to A

are

(i) equal (ii) not equal (iii) equal to 24 (iv) equal to 2^6*2^4​

Answer 1

Answer:

the answer is (1) equal

Answer 2

Answer:(iii) equal to 24

Step-by-step explanation:

A{7,8,9,a,b,c} and B{1,2,3,4}

In Relation of A to B

{(7,1),(7,2),(7,3),(7,4),(8,1),(8,2),(8,3),(8,4),(9,1),(9,2),(9,3),(9,4),(a,1),(a,2),(a,3),(a,4),(b,1),(b,2),,(b,3),(b,4)................(c,4)

similarly,

find the relation from B to A

you will see that in both the cases there are 24 relations.

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