esc01720mustacmw esc01720mustacmw
  • 04-05-2021
  • Mathematics
contestada

Prove that (n-1, r)+(n, r-1)=(n,r)
​

Respuesta :

Аноним Аноним
  • 04-05-2021

Answer:

[tex] \binom{n - 1}{r} + \binom{n}{r - 1} = \binom{n}{r} \\( n - 1) + n = n \\ n - 1 = 0 \\ n = 1 \\ r + (r - 1) = r \\ r = 1 \\ \binom{0}{1} + \binom{1}{0} = \binom{1}{1}[/tex]

Answer Link

Otras preguntas

what 2 things are produced by neutralization
What is the difference between traditional manufacturing and a cottage industry
The battle of the Somme took place in le Nord Pas-de-Calais. la Picardie. la Normandie. la Bretagne.
The Formula For The Area Of a Triangle Is A = 1/2bh. a.Solve the formula for h.
What does using the word "servant" imply
The relationship between the set of points in a plane equidistant from point A
Is -27 meters deeper than -31 meters
Nicole receives 40 likes in 25 minutes assuming that the relationship is proportional how many like would she receive in 45 minutes
Line JK has the slope 3/4 and is perpendicular to line LM. What is the slope of line LM?
this island is 64 degrees west 16 degrees north