Determine o valor da razao termo da p a en que a1=4,e a8=123

Determine o valor da razao termo da p a en que a1=4,e a8=123

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    Determine o valor da razao termo da p.a .en que a1=4,e a8=123
    4 + 7r = 123
    7r = 123 — 4
    7r = 119

    r = 17

  • Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
    An = a8 = 123
    a1 = 4
    r = ?
    n = 8

    an = a1 + (n — 1)r
    123 = 4 + (8 — 1)r
    123 = 4 + 7r
    -7r = 4 — 123

    7r = 123 — 4
    7r = 119
    r = 17

    Razo 17

    {4 21 38 55 72 89 106 123}

    BONS ESTUDOS


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