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Chapter 9 of 46

Defining the Derivative

The limit machinery, aimed back at the instant-speed paradox that opened the course — and closing it.

Free12–16 min

By the end

Each chapter closes with capabilities, not topics. Watch for these.

01Compute average rates of change over an interval
02Define the derivative as a limit, in both standard forms
03Use derivative notation and compute a derivative at a point from the definition