What is the natural domain of the function f (a ) = 2-2ex O (-00, 0) U (0, 00) O (0, 00) OR O The function does not exist for any z. O (-00, 0)\fWhich of the following functions is not one-to-one on its natural domain? Of(ac) = 20 O g(ac) = 2ac + 5 Oh(x) = 2x2 + 5 O p(ac) = 2a3 + 5 O None of the above.\fIf In(A) =2 and In (B) =-3, what Is the value of In(e- A-2B) ? O -5 0 5 0 -3 0 3 O None of the above