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hardyadamson
@hardyadamson
July 2022
1
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Сумма чисел от 4 до 50
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IrkaShevko
Verified answer
Всего чисел n = 47
Sn = (a1+an)*n/2
S47 = 47(4+50)/2 = 47*27 = 1269
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Answers & Comments
Verified answer
Всего чисел n = 47Sn = (a1+an)*n/2
S47 = 47(4+50)/2 = 47*27 = 1269