PUZZLE #47
Responses/hints
A.
B. Yes, n + n = 2n
C. . . .
D. – need
to show that C(n,k) + C(n+1,k+2) + C(n+2,k+1) = C(n,k+1) + C(n+1,k) + C(n+2,k+2)??
PUZZLE #47
Responses/hints
A.
B. Yes, n + n = 2n
C. . . .
D. – need
to show that C(n,k) + C(n+1,k+2) + C(n+2,k+1) = C(n,k+1) + C(n+1,k) + C(n+2,k+2)??