Section 10.18

Binomial Series

What happens if you raise a binomial to a fraction? Or a negative number?

1

Introduction

You know .
But what about or ?
The Binomial Series allows us to expand for any real number .

Interactive: Square Root Expansion

For , the series converges for .

2

The Formula

Binomial Series

where .

3

Worked Examples

Example 1: Expanding Square Root

Expand (i.e., ).

Example 2: Negative Power

Expand .

Here .
.

4

Practice Quiz

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