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- Rational Expressions
Partial fraction decomposition
- Intro Lesson: a9:49
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- Lesson: 1b7:49
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- Lesson: 2b6:36
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- Lesson: 418:13
- Lesson: 5a12:10
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Partial fraction decomposition
Related Concepts: Integration of rational functions by partial fractions
Lessons
∙ Partial fraction decomposition expresses a rational function g(x)f(x), where f(x) and g(x) are polynomials in x, as a sum of simpler fractions.
∙Partial fraction decomposition only applies to proper fractions in which the degree of the numerator is less than that of the denominator.
- IntroductionIntroduction to Partial Fraction Decompositiona)What is partial fraction decomposition?
- 1.Case 1: Denominator is a product of linear factors with no repeats
Find the partial fractions of:
a)(x+3)(x−1)x+7b)x2+x4x+3 - 2.Case 2: Denominator is a product of linear factors with repeats
Find the partial fractions of :
a)(x−2)33x2−5b)x2+10x+252x−1 - 3.Case 3: Denominator contains irreducible quadratic factors with no repeats
Find the partial fractions of :
x3−8x2x2+5x+8
- 4.Case 4: Denominator contains irreducible quadratic factors with repeats
Find the partial fractions of:
x(x2+1)23x4+x3+1
- 5.First perform long division, then partial fraction decomposition
Find the partial fractions of:
a)x2−3x2x3−3x2+4xb)x2+6x−162x2+14x+24
Do better in math today
1.
Rational Expressions
1.1
Simplifying rational expressions and restrictions
1.2
Adding and subtracting rational expressions
1.3
Multiplying rational expressions
1.4
Dividing rational expressions
1.5
Solving rational equations
1.6
Applications of rational equations
1.7
Simplifying complex fractions
1.8
Partial Fraction Decomposition