Розглянь числов послдовност. За яким методом х задано?
24, 21, 19,

24, 21, 19, 18, 15, 13, 12, 9, 7nbsp;

24 3 = 21nbsp;

21 2 = 19nbsp;

19 1 = 18

18 3 = 15nbsp;

15 2 = 13

13 1 = 12

12 3 = 9

9 2 = 7

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1, 4, 9, 16, 25, 36, 49, 64, 81, 100

2 2 = 4nbsp;

3 3 = 9

4 4 = 16

5 5 = 25

6 6 = 36

7 7 = 49

8 8 = 64

9 9 = 81

10 10 = 100