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joycemarac8
@joycemarac8
March 2022
1
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Primeira pergunta: determine 61
° termo da P.A (9, 13, 17, 21.......)
Segunda pergunta: calcule o numero de termos da P.A (5, 10,.......785)
por favor, eu preciso de isso hoje! desde ja agradeço.
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AntoniLAD
Verified answer
A1=9
a2=13
razão=13-9=4
n=61
an=a1+(n-1).r
a61=9+(61-1).4
a61=9+60.4
a61=9+240
a61=249
Segunda
785=5+(n-1).5
785=5+5n-5
785-5+5=5n
n=785/5
n=157
2 votes
Thanks 1
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Verified answer
A1=9a2=13
razão=13-9=4
n=61
an=a1+(n-1).r
a61=9+(61-1).4
a61=9+60.4
a61=9+240
a61=249
Segunda
785=5+(n-1).5
785=5+5n-5
785-5+5=5n
n=785/5
n=157