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Differentiate f(x)=arctan(e^5x)

  • Thread starter jpc90
  • Start date
How do you differentiate f(x)=arctan(e^5x)
 
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13
If it's w.r.t . x then use the chain rule e.g. u= e^(5x)
 
I did something like,

1/1+(e^5x)^2

and then

5e^-5x/1+(e^10x)

I don't think that is right though, I'm pretty confused
 
Last edited:

HallsofIvy

Science Advisor
Homework Helper
41,682
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How did you get e-5x in the numerator? The derivative of e5x is 5e5x. That is what you should be multiplying by.
 
I thought since e^5x is in the denominator that it is equal to e^-5x
 
ok thanks guys
 

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