Paper 1 · Differentiation ⏱ Tested in 5 exam questions since 2015 Lesson 8 of 21

Differentiation 8 – Chain Rule

This tutorial is for members

Read the lesson notes free below — subscribe to watch the full worked video and download the PDF.

Subscribe for full access · €199/yr

You’ll learn

  • Differentiate (bracket)ⁿ: bring n down, drop the power by 1, × derivative of the bracket
  • Rewrite square and cube roots as powers (^½, ^⅓) before differentiating
  • Simplify negative fractional powers back to root form using page-21 index rules

Most recent exam questions

  • 2025 P1 Q3(a)
  • 2025 P1 Q5(c) — deferred
  • 2025 P1 Q9(b)(ii) — deferred
  • 2023 P1 Q5(a)
  • 2015 P1 Q5(b)

💬 Stuck on something in this lesson?

Send your question with this lesson’s name attached — you’ll get a reply by email.