Предмет: Математика, автор: Саша28112000

найти пятый член арифметической прогрессии, если a1=10. d=3. Помагите

Ответы

Автор ответа: borisovaaleksan

$a_{5} = a_{1}+d(n-1)=10+3*4=10+12=22$

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