Recent content by iclutcha

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    Solving for p in a Vector Dot Product Equation

    EDIT: nvm i got it, dumb mistake.
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    Solving for p in a Vector Dot Product Equation

    heh, yeah i did square it wrong that time... but on my paper i did it just like that, but after i use the quadratic formula on the final outcome, its still wrong... maybe you have better luck?
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    Solving for p in a Vector Dot Product Equation

    I showed my work in the first post
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    Solving for p in a Vector Dot Product Equation

    I just tried it again, edited the first post, no quadratic but i could have done something wrong.
  5. I

    Solving for p in a Vector Dot Product Equation

    Well its not so much the quadratic that troubles me, as the solution. When i solve it i get a number with decimals, and it is not near the final answer which the book gives. (4) If someone could finish off my solution that would be great, as when i did it, it was incorrect.
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    Solving for p in a Vector Dot Product Equation

    Homework Statement The cosine of the angle between vector a and vector b is 4/21. Find p. vector a = 6i + 3j - 2k vector b = -2i + pj - 4k Homework Equations (Vector a) . (Vector b) = abcos(theta) (Vector a) . (Vector b) = axbx + ayby + azbz mag(a) = root(ax^2 + ay^2 + az^2) The Attempt at...