Potironette
petite fantaisiste
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#301
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Oh woops, I forgot to write the n, it is 1 - (1/3) n
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For example, the closed form of f(n) = 1 + 2 + ... + n is f(n) = n(n+1)/2.
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I think that the homework is asking for that? Except without a technique but just by somehow reasoning it..?
Last edited by Potironette; 04-04-2017 at 08:52 PM.
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Posted 04-04-2017, 08:50 PM
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