anonymous
  • anonymous
Derivatives... ANY kind of help. PLEASE?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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DebbieG
  • DebbieG
Welcome to Open Study! :) Can you post a specific question? :)
anonymous
  • anonymous
we need at least an example problem to work with ^^;
anonymous
  • anonymous
Find the derivative of the function: (pi*cos(t))

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anonymous
  • anonymous
since pi is a constant you can take it out and just take the derivative of cos(t)...do you know how to do that?
anonymous
  • anonymous
no, ): I'm terrible in math, and my teacher moves so fast. If you could explain I'd be thankful!
anonymous
  • anonymous
derivative of cos(t) is -sin(t)
anonymous
  • anonymous
What about y= x^2- (1/2)cosx
DebbieG
  • DebbieG
Do you know the rule for the derivative of \(\Large x^2\)? There's a standard rule for that, probably one of the first ones you learned.
anonymous
  • anonymous
Haha it's bad to think I learned something because my teacher moves SO fast and gets mad when we ask questions /:
DebbieG
  • DebbieG
The when you have a sum or difference, you just take the derivative of each term, and add/subtract them. The only other rule you need is that if you have a constant times something, the derivative is the constant times the derivative of the "something", e.g.: \[\dfrac{ d }{ dy }C\cdot f(x)=C\cdot \dfrac{ d }{ dy }f(x)\]
DebbieG
  • DebbieG
Well, that's a shame if the teacher is moving fast, but then maybe just sit down with your textbook and review it after class, fill in what you didn't understand in your notes, and try the homework problems. All you're doing here is applying some formulas, so even if he moves fast, you just need to get the formulas down and practice them a bit. :)
anonymous
  • anonymous
Thank y'all!

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