Learning Task 2 A. Determine whether the sequence is arithmetic or not. If it is find the common difference and the next three terms. 1. 2, 5, 8, 11,... 2. 2, -4, 6, 8, 10,... 3. -6, -10, -14, -18,... 4. 40, 42, 44, 46,... 5. 1.2, 1.8, 2.4,... 6. 1, 5, 9, 13,...​