Number of onto functions ?Discrete Mathematics Level 5
A function \(f\) be defined from \(A\) to \(B\).
If, \(f(x_1)=y_1\) & \(f(x_2)=y_2\),
then what is the number of onto functions defined from \(A\) to \(B\) ?
The figure (in the pic) is a rough one. :)
Wanna try more problems on functions ?