csmith40491 csmith40491
  • 07-03-2024
  • Mathematics
contestada

The crux of the combinatorial proof of the binomial theorem is that the number of ways to arrange k b's and (n k) a's in order is _________.
a. n choose k
b. n!/(k!(n-k)!)
c. (n-k)!
d. k!

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