Let P={10,20,30} and Q={5,10,15,20}. Which one of the following functions is one – one and not onto?
1.f={(10,5),(10,10),(10,15),(10,20)}
2.f={(10,5),(20,10),(30,15)}
3.f={(20,5),(20,10),(30,10)}
4.f={(10,5),(10,10),(20,15),(30,20)}
Posted Date:-2022-05-13 08:52:21