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21 April, 11:39

What is the seventh term of the geometric sequence were a one equals - 4096 and a four equals 64

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  1. 21 April, 13:34
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    Step-by-step explanation:

    The nth term of a geometric sequence is:

    aₙ = a₁ (r) ⁿ⁻¹

    where a₁ is the first term and r is the common ratio.

    Given that a₁ = - 4096 and a₄ = 64:

    64 = - 4096 (r) ⁴⁻¹

    -1/64 = r³

    r = - 1/4

    So the seventh term is:

    a₇ = - 4096 (-1/4) ⁷⁻¹

    a₇ = - 1
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