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Write an example of a geometric sequence with a t(1) = 7, give at least the first 4 terms. Explain how you know that it is Geometric.

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  1. example 1
    pick a value of r, let's pick r = 3
    sequence: 7, 21, 63, 189, 567, ...

    example 2
    pick a value of r, let's pick r = -2
    sequence: 7, -14 , 28, ..... (find 2 more)

    example 3
    .....

    example 4
    ....

    We know they are geometric, because we used the definition

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    Reiny

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