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Mathematics 21 Online
OpenStudy (anonymous):

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OpenStudy (anonymous):

Any help would be greatly appreciated.

OpenStudy (cwrw238):

you first find the derivative dr/d theta

OpenStudy (anonymous):

How do I find the derivative of it? Is it like finding regular derivatives?

OpenStudy (cwrw238):

yes- you need to use the chain rule in this case

OpenStudy (anonymous):

Ok let me do that real quick here

OpenStudy (cwrw238):

sorry jenni I just realised i gotta go right away i'm sure others will be abl;e to help

OpenStudy (anonymous):

Well anyways, I got 4cos(4theta) as the derivative of r. I'm not sure what to do now

OpenStudy (anonymous):

Doesn't look like anyone else will help so I guess I'll just close this question?

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