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Paritial fraction expansion

3 videos
1 skill
If you add several rational expressions with lower degree denominator, you are likely to get a sum with a higher degree denominator (which is the least-common multiple of the lower-degree ones). This tutorial lets us think about going the other way--start with a rational expression with a higher degree denominator and break it up as the sum of simpler rational expressions.

Partial fraction expansion 1

VIDEO 11:28 minutes
Introduction to partial fraction expansion

Partial fraction expansion 2

VIDEO 13:02 minutes
A more complex problem

Partial fraction expansion 3

VIDEO 10:35 minutes
Dealing with repeated factors

Partial fraction expansion

PRACTICE PROBLEMS
Represent a complicated rational fraction as a sum of simpler fractions using partial fraction expansion.