1 domain of f range of f 2 domain of g range of g 3 domain

1. domain of f = range of f

2. domain of g = range of g

3. domain of g is a proper subset of range of f

4. range of f is a proper subset of domain of g

Solution

dom(f) = {1,2,3,4,5,6,7}

range(f) = {2,4,6,7}

dom(g) = {1,2,3,,4,5,6,7}

range(g) = {1,2,3,4,5,6,7}

=>

domain of g = range of g => option B is true

range of f is proper subset of domian of g => option D is tru