anonymous
  • anonymous
What is the domain of the following function? y = -3sec(2pix)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
D:{x|x∈R} no other restrictions
anonymous
  • anonymous
thanks man
anonymous
  • anonymous
no problem :)

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Directrix
  • Directrix
This function appears to be undefined at x=.25 radians and selected multiples thereof. These values, I think, should be excluded from the domain. Given that the secant function is discontinuous, I doubt the domain would be the set of Reals.
anonymous
  • anonymous
^ oh that's true actually. i saw that as sine function.
anonymous
  • anonymous
oh, good thing i did not submit the answer yet
anonymous
  • anonymous
D:{x|(x≠1/4+n/2), n∈I x∈R} would be the correct answer i think. sorry for that haha.
anonymous
  • anonymous
hmm so {x|x≠kpi/4,k is an odd integer) would be another format to say the same thing?
anonymous
  • anonymous
saying kpi/2, where k is an integer would be a better way of saying it
anonymous
  • anonymous
kpi/2 ?
anonymous
  • anonymous
how does it change from kpi/4
anonymous
  • anonymous
saying kpi/4 and saying that k is an odd integer is kinda bizzare. saying kpi/2 and saying that k is an integer would be a better way.
anonymous
  • anonymous
just to be clear, you are sure it is kpi/4 and not k/4

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