[微積] 收斂區間問題(贈200p)
f(x) = 1 + 2x + x^2 + 2x^3 + x^4 + ...
coefficients are C_{2n} = 1 and C_{2n+1}=2 for all n>=0
Find the interval of convergent of the series.
第一個解答 贈200p幣
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04/12 11:15, , 1F
04/12 11:15, 1F
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04/12 11:15, , 2F
04/12 11:15, 2F