1. fis the function from (a, b, c) to 1, 2, 3 if it is, what is its inverse? such thatf(a)2,f(b)-3,(c-1. Is finvertible, and 2. Letfbe the function from (a, b, c, d; to {1, 2, 3} defined by f(a) - 3, f(b)-2, f(c)-1, and f(d)- 3. Is fan onto function? 3. Letfbe the function from x to y and X-a, b, c } and Y-1, 2, 3 } such that f(a)-3, f(b) 2, and f(c)-1. Iff X Y s a function, then the inverse offis the function fi: Y X show that function composition of both will give an Identity set (OR) In other words prove f fx and