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Thread: first 4 terms of sequence help

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    first 4 terms of sequence help

    Hello, I am currently working on my degree in IT and I am stuck on sequence arithmetic. The question asks me to find the first 4 terms of the sequence. an=(-7)n+1
    If anyone can help I have been banging me head on this for an hour, if someone has some examples that could help me figure this out I would be extremely grateful,

    -Tony
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    Re: first 4 terms of sequence help

    Quote Originally Posted by owninginc View Post
    Hello, I am currently working on my degree in IT and I am stuck on sequence arithmetic. The question asks me to find the first 4 terms of the sequence. an=(-7)n+1
    If anyone can help I have been banging me head on this for an hour, if someone has some examples that could help me figure this out I would be extremely grateful,

    -Tony
    Just pick an "n"
    n = 0 \implies a_0 = (-7)^{0  + 1} = (-7)^1 = -7

    n = 1 \implies a_1 = (-7)^{1 + 1} = (-7)^2 = 49

    etc.

    -Dan
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    Re: first 4 terms of sequence help

    Quote Originally Posted by owninginc View Post
    Hello, I am currently working on my degree in IT and I am stuck on sequence arithmetic. The question asks me to find the first 4 terms of the sequence. an=(-7)n+1
    $a_1=7^2,~a_2=-7^3,~a_3=~?,~\&~a_4=~?$
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