Mathematics

Problem

Let

f: R \to R

and

g: R \to R

be two one-one and onto functions, such that they are the mirror images of each other about the line

y = a

. If

h(x) = f(x) + g(x)

, then

h(x)

is a. one-one and onto b. only one-one and not onto c. only onto but not one-one d. None of the above