Na PA 5,15,25 qual é o valor da razão

Na PA 5,15,25 qual é o valor da razão



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    PA
    A razo de uma PA voc diminui o A2 — A1 , veja :
    r = a2 — a1 r = 15 — 5 r = 10

    A razo da PA 10.

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    Em uma PA, razo o valor que se adiciona a um termo para determinarmos o termo seguinte. Consequentemente, podemos calcular a razo subtraindo de um termo o seu antecessor.

    A razo dessa PA 10 pois,
    5 + 10 = 15
    15 + 10 = 15


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