Forgive the total beginner question, it's been a few years since I needed to do this stuff.
What is the expansion of $(1 + x)^n$?
Forgive the total beginner question, it's been a few years since I needed to do this stuff.
What is the expansion of $(1 + x)^n$?
$1 + n$
$1 + 2n + n^2$
$1 + 3n + 3n^2 + n^3$
$1 + 4n + 6n^2 + 4n^3 + n^4$
$1 + 5n + 10n^2 + 10n^3 + 5n^4 + n^5$
$1 + 6n + 15n^2 + 20n^3 + 15n^4 + 6n^5 + n^6$
See if you can spot a pattern!