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anastasiadmitrishina
@anastasiadmitrishina
August 2021
1
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Найти пятый член арифметической прогрессии 1; 7; 13; ...
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tanyaizmira
А1=1
а2=7
аn=a1+(n-1)d
d=a2-a1
d=7-1
a5=1+(5-1) * 6. (умножить на 6)
а5=25
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Answers & Comments
а2=7
аn=a1+(n-1)d
d=a2-a1
d=7-1
a5=1+(5-1) * 6. (умножить на 6)
а5=25