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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
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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freewilly922Best 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

freewilly922Best ResponseYou've already chosen the best response.0
Example \[ \bigg(\cos^4(x)\bigg)^{\prime}=4\cos^3(x)\]
 one year ago

freewilly922Best ResponseYou've already chosen the best response.0
oh and generally \[\cos^2(x) = (\cos(x))^2\]
 one year ago

satellite73Best 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

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

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

myininayaBest 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

satellite73Best ResponseYou've already chosen the best response.1
i just ate a mini kitkat
 one year ago
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