This starts with a reminder of differentiation and how it works (which can be skipped if you prefer), then goes into detail about differentiation from first principles, using chords on a curve. It can ...
40 fully worked differentiation-from-first-principles questions for OCR A A-Level Mathematics (H240, spec 1.07g and 1.07h), every line explained and annotated to the real OCR M/A/B/SC mark scheme.
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