1)a(n) = a1 + d(n - 1)
2)a2 + a10 = (a1 + d) + (a1 + 9d) = 2a1 + 10d = 13
3)a6 = a1 + 5d = (a2 + a10)/2 = 2a1 + 10d = 13/2 = 6,5
Ответ:
Пошаговое объяснение:
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
1)a(n) = a1 + d(n - 1)
2)a2 + a10 = (a1 + d) + (a1 + 9d) = 2a1 + 10d = 13
3)a6 = a1 + 5d = (a2 + a10)/2 = 2a1 + 10d = 13/2 = 6,5
Ответ:
Пошаговое объяснение: