Binomial Expansion (AQA A-Level Mathematics): Flashcards

$\frac{n!}{k!(n-k)!}$

$n + 1$

$n$

Sum of the two directly above it

Signs alternate

Product of all positive integers up to $n$

Decrease from $a^n$ to $a^0$

Increase from $b^0$ to $b^n$

$6$

Non-negative integer