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AnnNell
@AnnNell
July 2022
1
5
Report
(
ап
)- арифметична прогресія,
а
1= 2;
а
2
= 7. Знайдіть а21
.
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Answers & Comments
Детсад
А21=а1+d*(n-1)
Здесь:
а1=2
а2=7
d=а2-а1=7-2=5
Получаем:
а21=2+5*(21-1)=102
1 votes
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Answers & Comments
Здесь:
а1=2
а2=7
d=а2-а1=7-2=5
Получаем:
а21=2+5*(21-1)=102