) В арифметической прогрессии (аn) , Найдите разность а18-а11
a18-a11=a1+17d-a1-10d=17d- 10d=7d
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
a18-a11=a1+17d-a1-10d=17d- 10d=7d