Question: 33. Prove the combinatorial identity ;:0-0)-G:.)(:) (a) by induction on / (b) by a backwards induction argument on /that is, prove it first for
33. Prove the combinatorial identity
;:0-0)-G:.)—(:)· ·»
(a) by induction on /
(b) by a backwards induction argument on /—that is, prove it first for
/ = Ë, then assume it for / = k and show that this implies that it is true for
/ = k - 1.
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