l20soln - q n-1 q-1 ]] = . . . 1 i =0 2 i = 2 1-1 2-1 . . ....

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CS 245 Winter 2009 Solution Set for Lecture 20 Nissanke Ch. 10 Exercise 1 This question asks you to prove: n n i =0 q i = q n - 1 q - 1 This is not a tautology as demonstrated by the following interpretation. D = N q m→ 2 I [[ n n i =0 q i =
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Unformatted text preview: q n-1 q-1 ]] = . . . 1 i =0 2 i = 2 1-1 2-1 . . . = . . . 2 1 + i =0 2 i = 1 . . . = . . . 2 1 + 2 = 1 . . . = . . . 2 + 1 = 1 . . . = F 1...
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