goes from [-1,1].

As x belongs to [0,1],

=

Take f(x) = f(y) for some x,y in domain,
At x=0,
Answer = 0

THerefore, x = y.
Also, for all b in range, there is some a in the domain.
Hence, h(x) is a bijective function.

=

It implies that
Thanks
Bharat bajaj
IIT Delhi
askiitians faculty