Question

if a ={1,2,3,5} and b = {5,6} then number of relations from a to b is

Answer 1

Number of element in A =

n(A) = 4

Number of element in B =

n(B) = 2

Total number of element in (A×B) is n(A) × n(B) = 4×2 = 6

Number of relation from A to B

is 64

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