What is integration by substitution?

• Integration by substitution is used when an integrand where reverse chain rule is either not obvious or is not spotted
  • in the latter case it is like a “back-up” method for reverse chain rule

How do I use integration by substitution?

What is integration by parts?

What is the formula for integration by parts?

How do I use integration by parts?

• In trickier problems other rules of differentiation and integration may be needed
  • chain, product or quotient rule
  • reverse chain rule, substitution

Can integration by parts be used when there is only a single function?

• Exam Tip

When will I have to repeat integration by parts?

How do I apply integration by parts more than once?

What if neither function never becomes simpler when differentiating?

• Worked Example