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Nick88888888

  • one year ago

find the domain function of f(x) =

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  1. Nick88888888
    • one year ago
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    |dw:1436769998922:dw|

  2. anonymous
    • one year ago
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    IS this whole thing equal to y?

  3. Nick88888888
    • one year ago
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    what do you mean .-.?

  4. anonymous
    • one year ago
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    The domain is restricted by the radicand

  5. anonymous
    • one year ago
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    x+3>0

  6. anonymous
    • one year ago
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    x>-3 Domain has to be [-3,oo)

  7. Astrophysics
    • one year ago
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    \[x \ge - 3\]

  8. Astrophysics
    • one year ago
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    \[[ { x \in \mathbb{R} : x \ge -3 } ]\] should be squiggly brackets but oh well

  9. Nick88888888
    • one year ago
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    @Deeezzzz @Astrophysics ok so it gives me 4 options which is x ⥠0 , All Real Numbers , x ⥠1 , x > 0

  10. Nick88888888
    • one year ago
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    and ive looked at how to do this on other sites and it kept giving me ∈R stuff :/

  11. Astrophysics
    • one year ago
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    That is called set builder notation, you should really learn it, will not take you long http://www.mathsisfun.com/sets/set-builder-notation.html

  12. Astrophysics
    • one year ago
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    Your options aren't useful as it's giving symbols, just take image of your question and post it

  13. Nick88888888
    • one year ago
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    @Astrophysics

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  14. Astrophysics
    • one year ago
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    I'm not sure what those symbols mean, and those answers do not make sense to me, maybe someone else can explain the significance of those symbols? @ganeshie8 perhaps

  15. Astrophysics
    • one year ago
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    Ah zz is here, maybe he can help

  16. zzr0ck3r
    • one year ago
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    \(\sqrt[3]{-1}=-1\)

  17. zzr0ck3r
    • one year ago
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    i.e. there are no domain restrictions

  18. zzr0ck3r
    • one year ago
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    Does this make sense?

  19. Astrophysics
    • one year ago
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    I think you maybe thinking of \[(x+3)^3-1\]

  20. ganeshie8
    • one year ago
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    \[\large f(x) = \sqrt[3]{~x~}\] the usual definition is for all real numbers

  21. Astrophysics
    • one year ago
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    That was my initial thought, until I wolframmed it xD

  22. Astrophysics
    • one year ago
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    But in any case, what are the other symbols?

  23. ganeshie8
    • one year ago
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    definitely not math, they look chinese to me

  24. Nick88888888
    • one year ago
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    Lol

  25. zzr0ck3r
    • one year ago
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    I am not thinking about x^3, I am thinking of the cube root. \(\sqrt[a]{x}\) has domain all real numbers for all a odd, if a is even then it cant be negative

  26. Astrophysics
    • one year ago
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    Oh ok, I thought it was some other way for interval notation

  27. zzr0ck3r
    • one year ago
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    It is just him coping from something that is not latex...

  28. Astrophysics
    • one year ago
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    Haha, alright thanks zz and ganeshie

  29. zzr0ck3r
    • one year ago
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    I am guessing one should say \(x\ge 1\)

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