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lovesit2x
 one year ago
Best ResponseYou've already chosen the best response.0\[Find dr/d \theta. r=\sin (42\theta)\]

ravina
 one year ago
Best ResponseYou've already chosen the best response.0ambra te paundi hai udariyan

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Hmm so what would the derivative of \(\large \sin\theta\) be? This is another one of those problems where we'll have to work with the chain rule. :)

ravina
 one year ago
Best ResponseYou've already chosen the best response.0phul koi vilayti ala lae gaya udd main reh gaya kyarian

mathsmind
 one year ago
Best ResponseYou've already chosen the best response.0ur previous question was solved @lovesit2x

lovesit2x
 one year ago
Best ResponseYou've already chosen the best response.0yes it was, thanks for your help @mathsmind

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Yes good! Since the inside of the sine is more than just \(\large \theta\), we have to apply the chain rule, multiplying by the derivative of the inside. \[\huge r'=\cos(42\theta)\color{royalblue}{\left(42\theta\right)'}\]

lovesit2x
 one year ago
Best ResponseYou've already chosen the best response.0cos(42theta) (2) ?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Understand the process? We took the derivative of sine, which gave us cosine (with the same contents inside of it). And then we make a copy of the inside, and multiply by it's derivative.

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1\[\huge r'=2\cos(42\theta)\]Yay!
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