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anonymous
 5 years ago
how to solve dy/dx: cos*2X
anonymous
 5 years ago
how to solve dy/dx: cos*2X

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0derivative of cos (chain 2x)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Are you sure, Starica is getting ready to correct you

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0awww i thought we r to find dy/dx :S

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you just derive the outside and inside ^_^ outside = cos inside 2x so dy/dx of cos = sin and dy/dx of 2x = 2 soooo, dy/dx cos(2x) = 2sin(2x)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0o_o... but wasn't she right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no i missed the negative sign

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0isn't it finding the derivative of cos(2x)?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0np ^_^, do you get it now sandip?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no its finding the derivative of cos^2x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0OH! so the question is: \[\frac{dy}{dx} \cos^2(x)\]?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0alright so we have 2 steps, first outside then inside, our outside here is the power and the inside is cos(x) so dy/dx =  2cos(x) sin(x) ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but star ...dont u think it must b y= cos^2x n find dy/dx??

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0... Go by the definition of the chain rule. \[Let\ (cos\ x)^2 = f(g(x))\] What is our f(x), what is our g(x)?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0she/he doesn't get the chain rule >_< lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0in a much simpler way do it this way: cos(x) . cos(x) u'v + uv' ^_^ and solve

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I hope this way helps though :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0alright gtg, later ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0heshe isn't going to be able to do any of the rest of their homework if they don't understand the chain rule. This is a good opportunity to learn the chain rule since you need it to solve this problem.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0What can I say. Star likes manual labor.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol, I'm just trying to get it clear for him/her ^_^?
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