Question

if A={1,2,3} AND B{3,5} then find the number of functions from A to B




please i want the answer as soon as possible plz ............. plz

Answer 1

$|A| = 3 \\ \\ |B| = 2 \\ \\ no.\ of\ functions\ from\ A\ to\ B=|B|^{|A|}=2^{3}=8$

Answer 2

n(A) = 3 and n(B) = 2
The number of functions from A to B = 2³ = 8