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Let-n-be-a-positive-integer-Prove-that-k-0-n-2-k-n-k-n-k-n-k-2-2n-1-n-




Question Number 120188 by benjo_mathlover last updated on 30/Oct/20
Let n be a positive integer .  Prove that Σ_(k=0) ^n 2^k   ((n),(k) )  (((  n−k)),((⌊((n−k)/2)⌋)) ) =  (((2n+1)),((     n)) )
Letnbeapositiveinteger.Provethatnk=02k(nk)(nknk2)=(2n+1n)

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