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The number of lines making equal angles with Co-ordinate axes is ??

  1. Oct 5, 2015 #1
    Please explain it.
     
  2. jcsd
  3. Oct 5, 2015 #2

    BvU

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    Hello mr B, welcome to PF :smile: !

    Please explain it is a bit short. Explain what, precisely ?
     
  4. Oct 5, 2015 #3

    phinds

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    Have you made any attempt at a solution yourself? What do you think it might be and why?
     
  5. Oct 5, 2015 #4
    I think it's 4 lines (8 rays) but there are some who are opposing me..What is the right answer?
     
  6. Oct 5, 2015 #5

    phinds

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    There is not a "right" answer, because you have not fully stated the conditions to be met. Personally, I agree w/ you but, again, it depends on the specified conditions (which you have not stated). For example, are we talking about angles from the positive x, y, and z directions or is it OK that the angle be from the negative directions?
     
    Last edited: Oct 5, 2015
  7. Oct 8, 2015 #6
    Also, are we talking about coordinate axes in two or three dimensions?
     
  8. Oct 8, 2015 #7

    phinds

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    I don't think he could have possibly come up with 4 lines if it were not 3D, so I think that's inherent in his post.
     
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