1)11, 15, 20, 24, 29, 33, до 60;
закономерность: + 4, + 5
11 + 4 = 15... 15 + 5 = 20 ... 20 + 4 = 24... 24 + 5 = 29.. 29 + 4 = 33..
33 + 5 = 38... 38 + 4 = 42... 42 + 5 = 47... 47 + 4 = 51... 51 + 5 = 56... ( 56 + 4 = 60... нужно ДО 60)
11, 15, 20, 24, 29, 33, 38, 42, 47, 51, 56.
2) 12,11,13,12,14,13,15,до 17
закономерность: - 1, + 2.
12 - 1 = 11... 11 + 2 = 13... 13 - 1 = 12... 12 + 2 = 14... 14 - 1 = 13 ... 13 + 2 = 15..
15 - 1 = 14... 14 + 2 = 16 ... 16 - 1 = 15 ( 15 + 2 = 17.. нужно ДО 17)
12, 11, 13, 12, 14, 13, 15, 14, 16, 15.
17a-6a-28-11=17*13-6*13-28-11=221-143-28-11=104
3(5a-2a)-32=15a-10a-32=15*13-10*13-32=195-130-32=3
5(2a+7a)-32a+41=10a+35a-32a+41=13*10+35*13-32*13+41=130+455+416+41=1042