= {0,1,2). Let f(x,y)/3 x J3 J3 and g (x,y): J3 x J3 J3. These two functions are defined as such: f(x,y) -(x +y)2 mod 3 and g(x,y) - (x2 +y2) mod 3. 2. a. What is the range of f? What is the range of g? b. What is the inverse image of 0 under f? What is the inverse image of 0 under g? c. Is f -gExplain