Question

01.Determine o 65° termo da P.A (-10,-3,4,11...)

Answer 1

PA ⇒Termo Geral ⇒ an = a1 + (n - 1) r

a1 = -10 ; n = 65 ; r = -3 - (-10) = 7; a65 = ???

a65 = -10 + (65 - 1) *7 = -10 + 64 * 7 = -10 +448 =  438

a65 = 438

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30/11/2015
Sepauto - SSRC
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