Respuesta:
1-
S = {6, 11, 21, 41, 81, ..... }
6, (6 + 5), (11 + 10), (21 + 20), (41 + 40), .......
2-
S = {35, 174/5, 173/5, 172/5, ...... }
35, (35 - 1/5 = 174/5), 173/5, 172/5, ...... (35 = 175/5)
3.
0,75, 6/4, 9/4, 12/4, 15/4, ....... (0,75 = 3/4)
S = {0,75, 3/2, 9/4, 3, 15/4, ..... }
4-
100, (99 - 4), (95 - 4), (91 - 4), (87 - 4), ...
S = {100, 95, 91, 87, 83, ..... }
Explicación paso a paso: