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juciara97
@juciara97
July 2022
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determine a soma dos termos de cada PA
a) ( -8,-5,-2,...22)
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MatheusJosé
Verified answer
An= a1 +(n-1).r
22= -8+(n-1). 3
22= -8 + 3n -3
22+8+3= 3n
33=3n
n= 11
7 votes
Thanks 19
juciara97
obrigada!
MatheusJosé
Por nada!
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Verified answer
An= a1 +(n-1).r22= -8+(n-1). 3
22= -8 + 3n -3
22+8+3= 3n
33=3n
n= 11