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Math Help - Vectors question

  1. #1
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    Vectors question

    hey all i am kind of stuck on this one:

    If a= 4i-2j+5k, b=4i+3j-3k, c=2i+2j+6k

    i) evaluating both sides of the equation verify that ax(bxc)=(a.c)b-(a.b)c
    ii) Evaluate the scalar product a.bxc

    THNX ALL xxoxox
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  2. #2
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    What is the point of this question?
    Do you expect someone else to do your calculations for you?
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  3. #3
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    Quote Originally Posted by Plato View Post
    What is the point of this question?
    Do you expect someone else to do your calculations for you?
    i dont know how to do it.. yes i do ..
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  4. #4
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    Can you caculate b \times c?
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  5. #5
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    Quote Originally Posted by gina_x View Post
    hey all i am kind of stuck on this one:

    If a= 4i-2j+5k, b=4i+3j-3k, c=2i+2j+6k

    ii) Evaluate the scalar product a.bxc

    THNX ALL xxoxox
    bxc=24i+30j+2k
    a.(bxc)=(4i-2j+5k).(24i+30j+2k)=96i-60j+10k
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