HSC Stuff > HSC Mathematics Extension 1
Help with Derivatives
jakesilove:
--- Quote from: JKFlacka on February 15, 2017, 06:14:53 pm ---Now I just feel like I am abusing the forum for questions :/ but I just truly don't understand.
How do I do this using the quick formula?
--- End quote ---
The quick formula you are looking for here is the chain rule. It goes like this.
So, here's what I want you to do. Write each question out in your work book. Identify f(x), and write it out. For instance, in a), f(x)=3x+7. Then, find f'(x) (ie. the first derivative of f(x)). Write out f'(x). For instance, in a), f'(x)=3. Then, plug the values you've found into the formula above! That's all there is to it.
jamonwindeyer:
--- Quote from: JKFlacka on February 15, 2017, 06:14:53 pm ---Now I just feel like I am abusing the forum for questions :/
--- End quote ---
You could never! If you are benefitting from the help then our time is well spent - It's what we are here for ;D
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