3.7 implicit differentiation objective: swbat find derivatives using implicit differentiation
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3.7 Implicit Differentiation
Objective: SWBAT find derivatives using implicit differentiation
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• Up until now we have been dealing with explicit functions (functions that are already solved for y).
• Implicit functions are functions that have not been solved for y.
• There are some functions for which it is not possible to solve for y, or you may not be sure how to do it.
• However, we can still find the derivative for a function that is written implicitly.– In order to do so, we have to treat the function y as
if it could be written as a function of x.– y is going to be the inside function and we will use a
chain rule effect to differentiate.
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• As previously mentioned, a problem with the alternative approach is that it sometimes may be very difficult or even impossible to solve for y.
• Therefore, implicit differentiation is usually the approach to utilize.
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