anonymous
  • anonymous
College Calculus question. refer to the image please!! Thank you!!
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
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anonymous
  • anonymous
thank you in advance for any help!
ksaimouli
  • ksaimouli
is this l hospitals rule

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anonymous
  • anonymous
I tried to do that. but the problem was the fraction as whole is squared so it seems difficult to do expand and derivative
hartnn
  • hartnn
which part u have difficulty with ? first term 1-cos x/2x or 2nd term sin5x/4x ?
anonymous
  • anonymous
The problem is that I can not treat them as different parts since they are squared as whole.
anonymous
  • anonymous
without square, I could have just take Limit separately.
hartnn
  • hartnn
u can bring the limit inside the square function!
anonymous
  • anonymous
by L hopital rule
anonymous
  • anonymous
what do you mean?!
hartnn
  • hartnn
lim (f(x)^2) = [lim f(x)]^2
anonymous
  • anonymous
Oh I did not know that
hartnn
  • hartnn
now can u solve that ?
anonymous
  • anonymous
then I can take limit separately and do L hopital rule
hartnn
  • hartnn
yep, then square the answer
anonymous
  • anonymous
Yep I got it. Thank you for your help
hartnn
  • hartnn
welcome :)

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