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    I've been given the following. The angle ACO is 15 degrees and BCO is 30 degrees. The O is meant to be the origin not a length.

    Find the lengths of OB and OC, done that  1+\frac{1}{3}(2\sqrt3) and  2+\sqrt3 respectively. Then I'm asked to find the coordinates of vectors AB AC and BC.

    Now I'm not too sure on this part, as I haven't been given any points. All I've managed to do is rewrite it as OB-OA etc.
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    (Original post by Music99)
    I've been given the following. The angle ACO is 15 degrees and BCO is 30 degrees. The O is meant to be the origin not a length.

    Find the lengths of OB and OC, done that  1+\frac{1}{3}(2\sqrt3) and  2+\sqrt3 respectively. Then I'm asked to find the coordinates of vectors AB AC and BC.

    Now I'm not too sure on this part, as I haven't been given any points. All I've managed to do is rewrite it as OB-OA etc.
    The question is impossible to answer given the information posted.

    [You must have been given more information than you have posted or you wouldn't have been able to find the lengths OB and OC.]
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    Um, this is a duplicate thread of:

    http://www.thestudentroom.co.uk/show....php?t=2313111

    And yeah, the extra info was that A is on the x-axis, B is on the y-axis, and C is on the z-axis.
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    (Original post by DFranklin)
    The question is impossible to answer given the information posted.

    [You must have been given more information than you have posted or you wouldn't have been able to find the lengths OB and OC.]
    Hi, yes sorry this is a duplicate thread of http://www.thestudentroom.co.uk/show...111&p=42129477

    A is on the x- axis B on the y and C on the z.
 
 
 
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