List of top Mathematics Questions on Relations and functions asked in Bihar Board XII

If \(A=\{a,b\}\), \(B=\{1,2,3\}\) then the total number of one–one (injective) functions from \(A\) to \(B\) is
If \(A=\{1,2\}\), \(B=\{a,b,c\}\) then the total number of functions from \(A\) to \(B\) is