Beginner having trouble taking derivative

  • Thread starter Heinz21
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  • #1
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Hello, i am having trouble taking the derivative of fucntions with using the chain rule plus another rule such as the product rule.... i know how to do chain rule by it self and product rule by itself but i am having trouble using them together.. here is an example
g(x)= ( 1+4x )5 ( 3+x-x2 )8
 

Answers and Replies

  • #2
mathman
Science Advisor
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Let f(x)=(1+4x)5 and h(x)=(3+x-x2)8

The g(x)=f(x)h(x) and g'(x)=f(x)h'(x) + f'(x)h(x)

Can you do the rest yourself?
 
  • #3
192
3
What Mathman is saying is that you first must use The Product Rule for Differentiation.
Then each derivative [h ' (x) and f ' (x) ] will require using The Chain Rule.
 

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