Question

the set a= 1 2 3 4 5 6 then n (a) =​

Answer 1

Explanation:

A relation from A to B will include elements from A×B

Elements of A×B are

{(1,4),(1,5),(1,6),(2,4),(2,5),(2,6),(3,4),(3,5),(3,6)}

Now the relation R

1

consists of elements form both A×B and B×A.

Thus R

1

is not a relation from A to B.

Answer 2

Answer:

n(a) =6

Explanation:

Because the set A contains 6 numbers.

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