Derivatives of inverse functions - StartLogic



Derivatives of inverse functions!

The graph of [pic] contains [pic] if and only if

[pic] contains [pic] there is a nice picture on p157 in your book.

If [pic] is differentiable and [pic] is its inverse ([pic]) then:

[pic]

Example:

[pic] find [pic]

First find: [pic][pic] using either your calculator or synthetic division. [pic]

Second, find [pic]

[pic]

[pic] so [pic]

Try: [pic] find [pic] if [pic]

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