Please answer this!! How do we write an algebraic equation of this pattern "1,1,2,3,5,8"?

I know the pattern but I don't know how to make it into in an algebraical expression.

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  • 8 years ago
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    f(x) = f(x-2) + f(x-1) for x>1

    f(x) = 1 for x = 0, 1

    i would write it like this as a piece-wise function.

    the first part is the generic, while the second part is the ones you need set to start the whole thing up

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