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Mimi_x3 Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{d}{dx}3xcos6x\] Do you know the product rule?
 one year ago

Mimi_x3 Group TitleBest ResponseYou've already chosen the best response.0
So, what have you done?
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
but how would i use it in this case
 one year ago

Mimi_x3 Group TitleBest ResponseYou've already chosen the best response.0
Where are you having problems?
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
may someone please show me step by step how to do this. my professor sucks and is currently being investigated by the math dept here because of it so yeah...
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
Here is a great site to help you with your math! www. mathway.com! :)
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
That site will provide you with a step by step! :D
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
mathway is not credible
 one year ago

Mimi_x3 Group TitleBest ResponseYou've already chosen the best response.0
Well, have you atleast tried it?
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
How i learn a lot from that site...
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
You just have to sign up to get the step by step part!! :) It helps me a ton...
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
i have missed many questions from its wrong answers. wolframalpha is more reliable
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
Okay. maybe you just type them in wrong... it always helps me :D
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
I dont use it for tests though... i use it for help... you use it for tests?
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
okay sure but anyways thanks bye. now back to the question i need help with
 one year ago

Mimi_x3 Group TitleBest ResponseYou've already chosen the best response.0
@tinagca: Please don't divert people to another site; when someone is trying to help them.
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
Mkay! later :D
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
I was trying to give her a step by step site :o
 one year ago

Mimi_x3 Group TitleBest ResponseYou've already chosen the best response.0
That was retarded; interjecting out of the blue.
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
please folks i really need help the bantering can be spared
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
Oh shut up. like seriously i was trying to help then you guys started being rude. So whatever, a simple thank you and just saying " Oh i already tried that site" would have been fine.
 one year ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
dw:1350314820570:dw
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
thank you zepdrix u are always so helpful
 one year ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
so do it piece by piece :) We have a (3x)', what is the derivative of 3x? :D
 one year ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
ok cool, so the first term will simplify to (3)(cos6x). Hmm now we have a (cos6x)' on the right side. We'll take the derivative of the outermost function (cosine) Then "chain" (multiply by the derivative of the inside (6x)' ) So whats the derivative of cos6x? :D
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
6sin(6x)
 one year ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
Yay sandy \c:/
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
You should give @zepdrix a medal @sandy524 ...i mean, that was a great answer!
 one year ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
lol tina c:
 one year ago

tinagca Group TitleBest ResponseYou've already chosen the best response.0
:) I gave you a medal! :D
 one year ago

sandy524 Group TitleBest ResponseYou've already chosen the best response.0
ok so after that what do we do
 one year ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.1
Just combine the pieces together and simplify :D So far we've figured out that the derivative is (3)(cos6x) + (3x)(6sin6x) =3cos6x 18xsin6x Make sense? :D
 one year ago
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