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anonymous

  • 4 years ago

What is the domain of the following function? y = -3sec(2pix)

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  1. anonymous
    • 4 years ago
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    D:{x|x∈R} no other restrictions

  2. anonymous
    • 4 years ago
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    thanks man

  3. anonymous
    • 4 years ago
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    no problem :)

  4. Directrix
    • 4 years ago
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    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.

  5. anonymous
    • 4 years ago
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    ^ oh that's true actually. i saw that as sine function.

  6. anonymous
    • 4 years ago
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    oh, good thing i did not submit the answer yet

  7. anonymous
    • 4 years ago
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    D:{x|(x≠1/4+n/2), n∈I x∈R} would be the correct answer i think. sorry for that haha.

  8. anonymous
    • 4 years ago
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    hmm so {x|x≠kpi/4,k is an odd integer) would be another format to say the same thing?

  9. anonymous
    • 4 years ago
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    saying kpi/2, where k is an integer would be a better way of saying it

  10. anonymous
    • 4 years ago
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    kpi/2 ?

  11. anonymous
    • 4 years ago
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    how does it change from kpi/4

  12. anonymous
    • 4 years ago
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    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.

  13. anonymous
    • 4 years ago
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    just to be clear, you are sure it is kpi/4 and not k/4

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