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Hoa

  • one year ago

find the coordinate vector of w relative to the basis S ={ui,u2} for R2; u1 = (2,-4); u2=(3,8);w=(1,1). Please,help

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  1. TuringTest
    • one year ago
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    you want to find scalars a and b such that w=a(u1)+b(u2)

  2. Hoa
    • one year ago
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    yes. I know how to apply but i don't know what is wrong with my work when i work with my matrix.|dw:1361480384600:dw|. my answer is always wrong. the book is (5/28,3/14) when checking with those scalar, it 's perfect, but i don't know how to get there with my matrix

  3. Hoa
    • one year ago
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    I know what 's wrong with me. thanks

  4. Hoa
    • one year ago
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    my matrix is wrong.

  5. TuringTest
    • one year ago
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    glad you spotted it :) yes it is sideways

  6. Hoa
    • one year ago
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    thank you very much.

  7. Hoa
    • one year ago
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    due to this website, I can figure out my problem. it 's better for me when being aware of the fact that I'm not alone. thanks

  8. TuringTest
    • one year ago
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    Happy to help!

  9. Hoa
    • one year ago
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    hey, why do you give me medal. i don't deserve it. you waste your medal.

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spraguer (Moderator)
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