Posted by **sharan ** on Saturday, November 24, 2012 at 1:29am.

The mapping is f:N →N, given by F(n)= 2n^3+1,n belongs to N.

A. one-one and onto

B. onto not one-one

C. one-one not onto

D. neither one-one nor onto

- maths -
**Steve**, Saturday, November 24, 2012 at 4:53am
Think of the shape of the graph.

If we had f:R->R, it would be (A).

By restricting to N, it is (C), since many numbers (like 2) are not in the range.

## Answer this Question

## Related Questions

- maths - The mapping is f:N →N, given by F(n)= 2n^3=1,n belongs to N. A. ...
- sant singh sukha singh school - The mapping is f:N →N, given by F(n)= 2n^3...
- Discrete Math - Hi, I need help with interpreting a figure. You can find it one...
- Mathematics - I have a question about onto and one-to-one.? Determine(with an ...
- Maths - Twenty-four ladybirds were sitting at various places around the garden....
- Maths - Twenty-four ladybirds were sitting at various places around the garden....
- physics - A slowly moving train with 15.0- m-long flatcars is passing a station...
- calculus - Let f: RŪR be defined by Determine whether or not f is a) one-to-one...
- Discrete Math - Let g(x)=3x^2+14x-15. Determine if g is one to one or onto. A. g...
- math - 1. Let f : Z to Z and g : Z to Z be functions de fined by f (x) = 3x + 1 ...

More Related Questions