wraith trail
,texsp Can't understand the logic behind it. I've seen Pascal's triangle, know what \binom{n}{k} is and how it's calculated and why, but where does ||2^n|| come from? Can someone please explain in to me in, like, really simple terms? Like in sausages and bricks. I've kind of jumped a little above my level, I think.
(It's not homework or the like, it's from a book I'm reading)
||\sum_{k=0}^n \binom{n}{k} \equiv 2^n||
robust iglooBOT
wraith trail
WHY: Sum of binom coeff = || 2^(binom's power) ||
woven onyxBOT
@wraith trail
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wraith trail
$$\sum_{k=0}^n \binom{n}{k} \equiv 2^n$$
woven onyxBOT
@wraith trail
versed nacelle
,texsp Can't understand the logic behind it. I've seen Pascal's triangle, know w...
Do binomial expansion of $(1+1)^n$
woven onyxBOT
bonimy
