A Level Maths: Locating Roots with a Change of Sign Revision Notes

Find approximate roots of equations by spotting where f(x) changes sign. Understand when this method can fail.

To put these notes into practice, try our A Level Maths exam questions by topic, which include OCR and Edexcel material with full mark schemes.

When you’re ready, move on to full A Level Maths past papers to practise under exam conditions.

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