Note: For questions 49, 50 and 51 use the fact that sin(u) = (-1)n. u 2n+1 (2n + 1)! for all u E R. n=0 49) If f (x) = 23 sin(x3), then To,o(x) is a 23 2 ! b) 26 2 ! d) 29 e) None of the above 50) If f (x) = 23 sin(23), then f(6)(0) is a) 0 b) 1 C) 3! d) 6! e) None of these are correct 51) If f (ac) = 23 sin(23), then f(9) (0) is a) 0 b c) d) e) None of the above