For real x, let f (x) = x3 + 5x +1, then
f is one-one and onto R
which is always + ive and hence f (x) is strictly increasing. Thus f is one-one.
Also f showing that range of f is whole ofR.
is one-one onto.
The graph of the function
Then for all
Is equal to
Which of the following functions have inverse defined on the ranges:
be to functions given by