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Cover Up Rule for Partial Fractions

In MF15 and MF26, we are given the partial fractions decomposition for

  • Non-repeated linear factors
  • Repeated linear factors
  • Non-repeated quadratic factor

It is useful to work with partial fractions especially when we do integration.

I have given 3 examples on how and when we use cover up rule (CUR). It acts like a shortcut to comparing coefficients. However, please note when CUR works and when we have to stick to our old good method of comparing coefficients.

 

Cover up Rule 1

Cover up Rule 2

Cover up Rule 3

 

Ai Ling Ong

Hi, I'm Ai Ling Ong. I enjoy coaching students who have challenges with understanding and scoring in 'A' Level H2 Maths. I develop Math strategies, sometimes ridiculous ideas to help students in understanding abstract concepts the fast and memorable way. I write this blog to share with you the stuff I teach in my class, the common mistakes my students made, the 'way' to think, analyze... If you have found this blog post useful, please share it with your friends. I will really appreciate it! :)

Filed Under: 9740 Syllabus, 9758 Syllabus, Integration Techniques, O-Level Additional Maths, Partial Fractions, Summary & Examples Tagged With: Cover up rule

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