Let f : R → R be defined as f(x) = 2x - 1 and g:R – {1} → R be defined as g(x) = (x - 1/2)/(x - 1).
Then the composition function f(g(x)) is:
1
Both one-one and onto
2
onto but not one-one
3
Neither one-one nor onto
4
one-one but not onto
Let f : R → R be defined as f(x) = 2x - 1 and g:R – {1} → R be defined as g(x) = (x - 1/2)/(x - 1).
Then the composition function f(g(x)) is: