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jay.

  • one year ago

Consider the three points in R3: A (3, 2, 0), B (0, 4, 2), and C (1, 0, 5). (a) The two vectors ⃗u and ⃗v both begin at A and point to B and C, respectively. Calculate ⃗u and ⃗v. (b) Determine the angle between ⃗u and ⃗v. (c) Calculate the area of the parallelogram determined by ⃗u and ⃗v. (d) Determine the vector equation of the line which passes through the points B and C.

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  1. eric789non
    • one year ago
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    are you asking all the questions

  2. jay.
    • one year ago
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    yes

  3. eric789non
    • one year ago
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    (A) u = (-3,2,2) v = (-2,-2,5)

  4. heedcom
    • one year ago
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    in calculating as eric789non has given you do |dw:1359632955043:dw|

  5. eric789non
    • one year ago
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    yes "point to" means after you add vector u to a it bocomes b

  6. heedcom
    • one year ago
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    in terms of the angle then please see this vid, as we try to assist and not give answers: http://www.youtube.com/watch?v=WDdR5s0C4cY

  7. jay.
    • one year ago
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    ok, i understand a and b can you please explain c and d

  8. amistre64
    • one year ago
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    if i recall correctly, i think the area of the parallelgram is related to the magnitude of the vector that is produced by crossing u and v

  9. amistre64
    • one year ago
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    either that or you can find the height of the parallelagram and the base

  10. amistre64
    • one year ago
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    d is just determining the vector from B to C and anchoring it to either point to define the line

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