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Vector Question

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    can someone help me with this question pls?

    Find the angle that the vector 9i-5j+3k makes with the positive x-axis and the positive y-axis.

    its in the edexcel c4 textbook. exercise 5G questions 5 and 6.

    thank you
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    (1,0,0) is a vector along x-axis.

    now find the angle between your vector and this one...
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    Which part are you stuck with then we can help better
    • Thread Starter
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    oh... thanks
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    (Original post by jlnbello)
    oh... thanks
    Are you able to do both the questions or do you still need any help?
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    no thank you i did them both. thanks for your time.

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Updated: April 9, 2012
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