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wio Group TitleBest ResponseYou've already chosen the best response.0
Do you know how to use the chain rule?
 2 years ago

wio Group TitleBest ResponseYou've already chosen the best response.0
Well your inner function is \(2x^23\) and your outer function is \(\cos(x)\). There shouldn't be anything hard about this.
 2 years ago

zurf Group TitleBest ResponseYou've already chosen the best response.0
do we have to use chain rule ? i'm confused on what we should do when with the cos
 2 years ago

wio Group TitleBest ResponseYou've already chosen the best response.0
The  is just \(1\cdot \cos(x)\). It's a constant. You can pull it out and put it back in after.
 2 years ago

zurf Group TitleBest ResponseYou've already chosen the best response.0
oh really? but this have to use f(x+h)f(x) first derivation ..
 2 years ago

wio Group TitleBest ResponseYou've already chosen the best response.0
You have to use this you mean? \[\Large \lim_{h\rightarrow 0}\frac{f(x+h)f(x)}{h}\]
 2 years ago

wio Group TitleBest ResponseYou've already chosen the best response.0
You're not allowed to use the chain rule?
 2 years ago

zurf Group TitleBest ResponseYou've already chosen the best response.0
Oh sorry, i just realised it only has to use chain rule. I make things go more complicated _
 2 years ago

wio Group TitleBest ResponseYou've already chosen the best response.0
So can you do it now?
 2 years ago

zurf Group TitleBest ResponseYou've already chosen the best response.0
yeah the answer is sin(2x^23)(4x) right ?
 2 years ago

RadEn Group TitleBest ResponseYou've already chosen the best response.0
yeah, i agree that
 2 years ago

zurf Group TitleBest ResponseYou've already chosen the best response.0
Oh thank you so much :D
 2 years ago
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