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heatherh294
Group Title
Find local min and max and the points of inflection for
f(x)= 3(cos(x))^2  6sin(x)
 one year ago
 one year ago
heatherh294 Group Title
Find local min and max and the points of inflection for f(x)= 3(cos(x))^2  6sin(x)
 one year ago
 one year ago

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freewilly922 Group TitleBest ResponseYou've already chosen the best response.0
Do you know how to do the chain rule with respect to trig functions?
 one year ago

freewilly922 Group TitleBest ResponseYou've already chosen the best response.0
Example \[ \bigg(\cos^4(x)\bigg)^{\prime}=4\cos^3(x)\]
 one year ago

freewilly922 Group TitleBest ResponseYou've already chosen the best response.0
oh and generally \[\cos^2(x) = (\cos(x))^2\]
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
let me write it correctly \[f'(x)=6\cos(x)\sin(x)6\cos(x)]\] that's better
 one year ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
\[\(cos^2(x))'=2\cos(x)(\sin(x))=2\cos(x)\sin(x)\]
 one year ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
@freewilly922 your example is a little off
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
mine was way off!
 one year ago

myininaya Group TitleBest ResponseYou've already chosen the best response.1
Corrected example from above: \[(\cos^4(x))'=4\cos^3(x)(\sin(x))=4\cos^3(x)\sin(x)\]
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
i just ate a mini kitkat
 one year ago
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