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Help with maclauren series.

  • Thread starter rcmango
  • Start date
  • #1
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Homework Statement



find maclauren series for: logx and arctan

Homework Equations



heres the maclauren series:
http://img164.imageshack.us/img164/2792/untitledff7.jpg [Broken]

The Attempt at a Solution



to solve these, do i need to keep applying the maclauren series formula like i would for sin or cos?

in other words, taking the derivative for logx and arctan, if so, can someone start me out with the derivatives, i don't know them.

also is e^x the same as xlog(e) ?
 
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Answers and Replies

  • #2
cristo
Staff Emeritus
Science Advisor
8,107
72

Homework Statement



find maclauren series for: logx and arctan

Homework Equations



heres the maclauren series:
http://img164.imageshack.us/img164/2792/untitledff7.jpg [Broken]

The Attempt at a Solution



to solve these, do i need to keep applying the maclauren series formula like i would for sin or cos?
Yes
in other words, taking the derivative for logx and arctan, if so, can someone start me out with the derivatives, i don't know them.
Well, what do you know. Do you not know the derivative of log(x)?

To calculate the derivative of arctan(x), try letting y=arctan(x) noting that now x=tan(y), and then differentiating both sides wrt x.
also is e^x the same as xlog(e) ?
Erm, no, what makes you think this?
 
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