GCE 2019 Mathematics P2- ECZ fully solved

time stamps 00:00 intro 01:02 question 1a 03:40 question 1b 12:06 question 2a 15:57 question 2b 20:25 question 3a 22:45 question 3b 33:29 question 4 44:33 question 5a 50:00 question 5b 59:30 question 6a 01:04:05 question 6b 01:10:46 question 7 01:28:26 question 8a 01:42:44 question 8b 01:46:57 question 8c 01:48:15 question 9a 01:57:35 question 9b 02:06:44 question 10a 02:10:57 question 10b 02:17:04 question 11 02:36:50 question 12a 02:51:38 question 12b