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reilan
@reilan
March 2022
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Dada a progressão aritmética (3, 8, 13, 18, ...), determine seu 15o termo.
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daisycastro
Verified answer
PA = ( 3, 8, 13, 18, 23, 28, 33, 38, 43, 48, 53, 58, 63, 68, 73)
an = a1 + ( n - 1) . r
a15 = 3 + ( 15 - 1) . 5
a15 = 3 + (14) . 5
a15 = 3 + 70
a 15 = 73
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daisycastro
de nada, bons estudos!!!!
cristianaplima
Verified answer
A15=a1+ 14R
a15= 3 + 14.5
a15= 3+ 70
a15= 73
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Lista de comentários
Verified answer
PA = ( 3, 8, 13, 18, 23, 28, 33, 38, 43, 48, 53, 58, 63, 68, 73)an = a1 + ( n - 1) . r
a15 = 3 + ( 15 - 1) . 5
a15 = 3 + (14) . 5
a15 = 3 + 70
a 15 = 73
Verified answer
A15=a1+ 14Ra15= 3 + 14.5
a15= 3+ 70
a15= 73