Solution:
f (x) =
Here , f (1 /2 )= f(-1 /2)
Clearly, f(x) is not one -one and also it is dependent on x.
If f : R→R and F(x) =, Where { } is a fractional part of x , then
f (x) =
Here , f (1 /2 )= f(-1 /2)
Clearly, f(x) is not one -one and also it is dependent on x.