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for-x-lt-1-prove-that-1-1-x-2-n-0-C-2n-n-4-n-x-2n-




Question Number 40896 by abdo.msup.com last updated on 28/Jul/18
for ∣x∣<1 prove that  (1/( (√(1−x^2 )))) =Σ_(n=0) ^∞  (C_(2n) ^n /4^n ) x^(2n)
forx∣<1provethat11x2=n=0C2nn4nx2n

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