anonymous
  • anonymous
Differentiate the following function. h (θ) = 7 sec(θ) + 4 eθ cot(θ)
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
this is what i got...\[7(\sec \theta \tan \theta)+4(e ^{\theta} \cot \theta -\csc ^{2}\theta)\]
anonymous
  • anonymous
\[dh/d \theta=7\sec \theta \tan \theta-4e^\theta\csc \theta \cot \theta-4e^\theta \csc \theta\]
anonymous
  • anonymous
oops my last part was wrong

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anonymous
  • anonymous
whats wrong with mine?
anonymous
  • anonymous
your looks fine...one sec...lemme double check
anonymous
  • anonymous
webassign is telling me its wrong
anonymous
  • anonymous
it is...i see what u did wrong
anonymous
  • anonymous
the last part is -e^(theta)csc^2(theta))
anonymous
  • anonymous
by chain rule
anonymous
  • anonymous
so its 4(-e^theta csc^2(theta))??
anonymous
  • anonymous
7(secθtanθ)+4(eθcotθ−(*(e^(theta))*)csc2θ
anonymous
  • anonymous
take all the parenthesis out...that starred area is what u needed to add...
anonymous
  • anonymous
u get it?

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