Need help differentiating the following equation:

  • Thread starter Thread starter Hfuais
  • Start date Start date
  • Tags Tags
    Differentiating
Hfuais
Messages
5
Reaction score
0
1. I have this equation: y= 2.52e^-0.8472x which I need to differentiate.



2. I am unsure whether to use the product or chain rule>



3. I honestly don't know what to do...
I was thinking 2.52e^u?
 
Physics news on Phys.org
Hfuais said:
I was thinking 2.52e^u?

Yes, let u=-0.8472x is how you could do it.

Then, dy/dx = dy/du * du/dx
 
Thanks!
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
Back
Top