3 Find the integer 'a' such that: b) a a) a 71 (mod 47) and -46 ≤ a ≤ 0. 89 (mod 19) and -9 ≤ a ≤ 9. 71 (mod

41) and 160 ≤ a ≤ 200. d) a 17 (mod 29) and -14 ≤ a ≤ 14. e) a = -11 (mod 21) and 90 ≤ a ≤ 110. c) a