Olá, alguém poderia me responder: Qual o vigésimo termo da PA (300, 275, 250...)?
a1=300
a2=275
r=a2-a1
r=275-300
a=25
a20=a1+19r
a20=300+19*25
a20=300+475
a20=775
ajuda eu https://br.answers.yahoo.com/question/index?qid=20...
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a1=300
a2=275
r=a2-a1
r=275-300
a=25
a20=a1+19r
a20=300+19*25
a20=300+475
a20=775
ajuda eu https://br.answers.yahoo.com/question/index?qid=20...