Edexcel A-Level Maths 2020 Paper 1 Q10 | Integration | Full Step-by-Step Explanation | Exam Prep

👉 Edexcel A-Level Maths 2020 Paper 1 – Question 10
This is a multi-step integration problem where you need to apply different techniques in different parts. In part (a), the integral is solved using integration by substitution, while in part (b), the result leads to a form that requires partial fractions. The final answer must be expressed in terms of ln a, so careful use of logarithmic rules is essential.
📚 Topics needed for this question:
Integration by substitution
Partial fractions
Logarithmic rules
Algebraic manipulation
🎯 What you’ll learn:
✔ How to recognise when to use substitution
✔ How to transition from substitution to partial fractions
✔ How to structure multi-step integration clearly
✔ How to simplify logarithmic expressions into the required form
✔ How to avoid relying on calculator answers
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