Posted by sharan on .
The mapping is f:N →N, given by F(n)= 2n^3=1,n belongs to N.
A. oneone and onto
B. onto not oneone
C. oneone not onto
D. neither oneone nor onto

math 
drwls,
Your school's name is not the subject of the question.
Is that really supposed to be an = sign between n^3 and 1?