Pure 4 Chapter 4 Binomial Expansion A-level Mathematics International

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Lesson walkthrough, timestamps of each subtopic below

0:00 Introduction Binomial Expansion
1:17 Pure 2 Binomial expansion recap
11:53 Binomial expansion for negative powers explained
14:15 Binomial expansion for fractional powers explained
17:15 when are Infinite expansions valid in Binomial Expansion explained
28:38 combining expansions explained
47:54 Accuracy of approximations explained
49:15 Common errors Binomial explained
50:36 Binomial expansion when constant is not 1 explained
59:00 Binomial Expansion using partial fractions explained

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Edexcel International A-level Mathematics following the Pearson's student book.
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Your explanations are so thorough and easy to follow!! I always have trouble with teachers skipping over details they assume we know when we really don’t.

dong
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1:08:11 I didn't understand the answer for 10(a) and 10(b)

earthran