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Chimin7316
@Chimin7316
July 2022
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Дана арифметическая прогрессия -25; -22; ...
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Answers & Comments
igir12370
A1 = - 25
a2 = - 22
d = a2 - a1 = - 22 + 25 = 3
an = a1 + d(n - 1) = - 25 + 3(n - 1) = 3n - 3 - 25 = 3n - 28
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ShirokovP
Verified answer
А1=-25;
а2=-22;
d=a2-a1=-22-(-25)=3;
an=a1+d*(n-1);
an=-25+3*(n-1);аn=-28+3*n;
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Answers & Comments
a2 = - 22
d = a2 - a1 = - 22 + 25 = 3
an = a1 + d(n - 1) = - 25 + 3(n - 1) = 3n - 3 - 25 = 3n - 28
Verified answer
А1=-25;а2=-22;
d=a2-a1=-22-(-25)=3;
an=a1+d*(n-1);
an=-25+3*(n-1);аn=-28+3*n;