AS/A2 Pure 1 Pure 3

P2 Topic 3: Sequences and series
The binomial expansion of (a + b)n for a positive integer n
These are all examples of binomial expansions:
Find the binomial expansion for any integer n.

Enter a value for n:

Summary Note that the coefficients in the expansion are the numbers in the rows of Pascal's Triangle. Make sure you fully understand how this formula works: © MathsNet 2001