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Vectors problem

  • 25-09-2011 2:53pm
    #1
    Closed Accounts Posts: 519 ✭✭✭


    Hey all, having a bit of trouble here.
    We're reviewing vectors, the scalar/dot product in class at the moment and it's no problem but I can't work out how to do one of the homework assignments.
    2 vectors. A=a1i+b1j+c1k, B=a2i+b2j+b3k. Find the unit vector perpendicular to the plane created by them.
    If anyone could just point me in the right direction here, I'm sure it's something obvious that I'm failing to see.
    Thanks for any help in advance


Comments

  • Registered Users, Registered Users 2 Posts: 5,633 ✭✭✭TheBody


    thecatspjs wrote: »
    Hey all, having a bit of trouble here.
    We're reviewing vectors, the scalar/dot product in class at the moment and it's no problem but I can't work out how to do one of the homework assignments.
    2 vectors. A=a1i+b1j+c1k, B=a2i+b2j+b3k. Find the unit vector perpendicular to the plane created by them.
    If anyone could just point me in the right direction here, I'm sure it's something obvious that I'm failing to see.
    Thanks for any help in advance

    Maybe have a look at what the cross product of two vectors is!!! ;) Let us know if you need more help.


  • Closed Accounts Posts: 519 ✭✭✭thecatspjs


    Ah thank you, I believe that will be the next lecture!


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