Year 13/A2 Pure Chapter 11.3 (Integration)

Today we explore how to integrate trigonometric expressions - in particular, trigonometric expressions that themselves need to expressed differently using trigonometric identities or by using the compound/double angle formulae.

This lesson is meant as preparation for Exercise 11C, page 300 of the Pearson Edexcel Pure Mathematics Year 2/A2 Textbook.

Introduction: 0:00

Solution to Warm-Up Q1: 0:55
Solution to Warm-Up Q2: 6:11

USING TRIGONOMETRIC IDENTITIES
Introduction and recap: 13:35

Worked Example 1: 16:45
Worked Example 2: 18:57
Worked Example 3a): 27:00
Alternative Method (u-sub): 30:16
Worked Example 3b): 31:40

Suggested Exercises: 35:05