Year 13/A2 Pure Chapter 11.4 (Integration)

This video covers what is known as the "reverse chain rule" for integration, but I tend to teach this topic in terms of u - substitutions as spotting integrals "by inspection" isn't always easy - and certainly harder to spot if you are relatively new to integration. This lesson is meant as preparation for Exercise 11D, page 302 of the Pearson Edexcel Pure Mathematics Year 2/A2 Textbook. Introduction: 0:00 Solution to Warm-Up Q1a): 1:27 Solution to Warm-Up Q1b): 3:30 Solution to Warm-Up Q1c): 8:31 Solution to Warm-Up Q2: 12:47 INTEGRATING kf'(𝑥)[f(𝑥)]ⁿ USING U - SUBSTITUTIONS Introduction: 27:79 Worked Example 1a): 30:07 Worked Example 1b): 32:44 Worked Example 1c): 35:10 Worked Example 2a): 38:21 Worked Example 2b): 40:39 Worked Example 2c): 42:52 Worked Example 3: 48:19 Suggested Exercises: 57:01