17 5 7 For each of The following functions , determine the derivatives on entire definition Area : ( a) f : C - C, f(z) :=a (aER> fest); (b) f : C- C, f(z) := sin z; ( c ) f : C - C, f (z) : = 24ez; (d) f : (0, too) - R, f (ac) := (2020 ) 20