if A= {1,2,3,4},then the number of functions on the set A ,which are not one-one is 1) 232 2) 240 3) 248 4) 256
Answer (1)
Student Expert
26th Jul, 2020
HEy Adyasha
The total number of functions that can be defined are 2(to the power 2n) that is 256. Out of this 24 functions are one one and onto. Hence the functions that are not one one are 256-24 that is 232. I hope I could solve your doubt. All the best.
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