Предмет: Математика, автор: madlena4

Последовательность (Аn)- арифметической прогрессии :: а) а 11 , если а1 = -3 и d= 0,07; б) а 26, если а1=18 и d = -0,6.

Помогите пожалуйста это мне надо очень срочно Даю 10 баллов

Ответы

Автор ответа: GogaMoga1
0

а11=а1+d(11-1) формула такая

a11=-3+0.7*10=-3+7=4

a26=18+(-0,6)(26-1)=18-0,6*25=18-15=3

Автор ответа: madlena4
0
все
Автор ответа: GogaMoga1
0
да
Автор ответа: GogaMoga1
0
вроде
Автор ответа: madlena4
0
Спасибо большое за помощь
Автор ответа: GogaMoga1
0
незачто
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