Derivative of e^x=e^x, the derivative of e^2x doesn't equal e^2x

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Discussion Overview

The discussion revolves around the differentiation of exponential functions, specifically comparing the derivatives of e^x and e^2x. Participants explore the application of the chain rule in these cases, seeking clarity on why the derivatives yield different results.

Discussion Character

  • Technical explanation
  • Mathematical reasoning

Main Points Raised

  • One participant questions why the derivative of e^x equals e^x while the derivative of e^2x does not, indicating a search for underlying rules.
  • Another participant suggests using the chain rule as a method to differentiate e^2x.
  • A participant provides a breakdown of the derivatives, stating that the derivative of e^x is (1)(e^x) and the derivative of e^2x is (2)(e^2x), attributing the coefficients to the chain rule.
  • One participant expresses gratitude for the clarification received from the previous explanations.
  • A participant summarizes a differentiation rule for exponential functions, stating d/dx(e^u) = e^u (du/dx).
  • Another participant presents an alternative perspective by rewriting e^{2x} as [e^x]^2 and applying the power rule, suggesting a different approach to differentiation.
  • A later reply emphasizes that the last approach also involves the chain rule but with the functions in a different order.

Areas of Agreement / Disagreement

Participants appear to agree on the application of the chain rule for differentiating e^2x, but there are multiple approaches discussed without a consensus on which is the most appropriate or clear method.

Contextual Notes

Some participants' explanations rely on the chain rule, but there may be assumptions about familiarity with differentiation rules that are not explicitly stated. The discussion does not resolve the best method for understanding the differentiation of e^2x.

oridniv
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I have a test tomorrow so I may keep asking questions frequently. For now, why is it that when the derivative of e^x=e^x, the derivative of e^2x doesn't equal e^2x. I've been looking for the rule but can't find it anywhere.
 
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Use the chain rule.
 
derivative of
e^x = (1)(e^x)
the 1 comes from the derivative of x because of chain rule

derivative of
e^2x = (2)(e^2x)
the 2 comes from the derivative of 2x because of chain rule

correct me if i am wrong.
 
Last edited:
thanx, makes much more sense
 
learn this rule: d/dx(e^u) = e^u (du/dx)
 
[tex]e^{2x}=[e^x]^2[/tex]
Since [tex]\frac{d}{dx}f(x)^n = nf'(x){f(x)}^{n-1}[/tex]
then if [tex]f(x)=e^{2x}[/tex] ...go from there.
 
That's again the chain rule but with the two functions reversed!
 

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