Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
The binomial series is a power series expansion of the form (1 + x)^a, where "a" can be any real number and "x" is a variable. It allows us to approximate functions as an infinite sum of terms.