Connected Rates of Change (Cambridge (CIE) AS Maths) : Revision Note
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Connected Rates of Change
What are connected rates of change?
In situations involving more than two variables you can use the chain rule to connect multiple rates of change into a single equation

Examiner Tips and Tricks
These problems can involve a lot of letters – be sure to keep track of what they all refer to.
Be especially sure that you are clear about which letters are variables and which are constants – these behave very differently when differentiation is involved!
Worked Example

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