At a glance
6
Occurrences
questions
5
Years
6
Papers
6
Worked
100%
When this method shows up
Years in which at least one question on this paper triggers the method.
Other top methods in Differentiation
- Optimise a gradient or stationary feature that depends on a parameter: differentiate in , then optimise over the parameter×5
- Read monotonicity and the number of stationary points off a fully factorised , discarding any factor of fixed sign×4
- On a 'which expression equals the derivative' question, substitute a convenient value of to eliminate options×4
- Build the tangent or normal line from , taking the negative reciprocal for a normal×3
- Geometric optimisation: use the constraint to reduce to one variable, then set the derivative to zero×3
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