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10 September, 17:47

Write an equation for the nth term of the geometric sequences-3,6,-12, ...

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  1. 10 September, 18:17
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    Write an equation for the nth term of the geometric sequences-3,6,-12, ...

    an = ar∩-1

    a = first term

    r = common ratio

    an = nth term

    an = - 3 x (-2) (-12-1)

    an = - 3 x (-2) (-13)

    an = - 3 x (-2) (-2) (-2) (-2) (-2) (-2) (-2) (-2) (-2) (-2) (-2) (-2) (-2) (-2)

    an = - 3 x - 16384

    nth term = 49152
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