(https://i.stack.imgur.com/vfy4d.jpg)
Hi I'm trying to prove that the (nr) formula gives a natural number by using proof by induction and I'm stuck on the last stage (in the picture above). Have I messed up earlier on and if not then how can I show that n+1n−r+1 is a natural number. I know there are other articles but I can't seem to find an answer to this.
Cheers
Thursday, 16 July 2015
calculus - Proof that nchooser always yields a natural number proof by induction
Subscribe to:
Post Comments (Atom)
real analysis - How to find limhrightarrow0fracsin(ha)h
How to find limh→0sin(ha)h without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
-
Ok, according to some notes I have, the following is true for a random variable X that can only take on positive values, i.e P(X\int_0^...
-
Self-studying some properties of the exponential-function I came to the question of ways to assign a value to the divergent sum $$s=\sum_{k=...
-
The question said: Use the Euclidean Algorithm to find gcd (1207,569) and write (1207,569) as an integer linear combination of 1207 ...
No comments:
Post a Comment