Mathematics: Analysis and Approaches · Topic 1: Number and algebra

SL1.9 — The binomial theorem

Mathematics: Analysis and Approaches · SL / HL · syllabus-mapped notes

1. Binomial coefficients: Pascal's triangle and nCr

   Finding $\binom{n}{r}$ from Pascal's triangle and the factorial formula.

2. Expanding $(a+b)^n$ and finding a term

   Applying the binomial theorem for $n\in\mathbb{N}$.