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1-1-x-1-k-1-n-1-k-2-2k-C-2k-k-x-k-o-x-n-




Question Number 145065 by Ar Brandon last updated on 02/Jul/21
(1/( (√(1+x))))=1+Σ_(k=1) ^n [(((−1)^k )/2^(2k) )C_(2k) ^k ]x^k +o(x^n )
11+x=1+nk=1[(1)k22kC2kk]xk+o(xn)

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