Grade 12Algebra
Find the number of maps f from the set {1,2,3} in to the set {1,2,3,4,5} such that f(i) is less than equal to f(j) whenever i is less than j
Find the number of maps f from the set {1,2,3} in to the set {1,2,3,4,5} such that f(i) is less than equal to f(j) whenever i is less than j
