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Alexis1994_13

when 2 vectors are parallel what we have ? I mean vector AB//BC= ?

  • 2 years ago
  • 2 years ago

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  1. amistre64
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    we have 2 vectors the differ by at most a scalar

    • 2 years ago
  2. Alexis1994_13
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    AB*BC=0 ?

    • 2 years ago
  3. amistre64
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    does dotting parallel vectors produce a 0? they aint orthogonal that I can recall

    • 2 years ago
  4. amistre64
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    0,1 0,1 ---- 0+1 = 1 0,1 0,-1 ---- 0-1 = -1

    • 2 years ago
  5. amistre64
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    3 , 4 -3,-4 ----- -9-12 = -18

    • 2 years ago
  6. Alexis1994_13
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    AB+BC=-1 ?

    • 2 years ago
  7. amistre64
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    adding vectors produces another vector, not a scalar

    • 2 years ago
  8. amistre64
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    youre gonna have to provide more verbiage if I am to understand what it is your asking :)

    • 2 years ago
  9. amistre64
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    that and 4.-4 = -16 ... not -12 lol

    • 2 years ago
  10. Alexis1994_13
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    I have the vectors AB(2,6) and BC(2K-2 , 5K-4) And I need to prove that those vectors are parallel. How I will do that?

    • 2 years ago
  11. Alexis1994_13
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    I mean,I need to find fot wich k those vectors are parallel.

    • 2 years ago
  12. amistre64
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    when they differ by only a scalar; by a multiplicative factor. 2 = 2k-2 and 6 = 5k-4

    • 2 years ago
  13. estudier
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    You could test values of k--

    • 2 years ago
  14. amistre64
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    4 = 2k; k=2 10 = 5k; k=2 right? so when k=2; that is one possible option for parallel

    • 2 years ago
  15. Alexis1994_13
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    then we have AB//BC <=> AB = BC

    • 2 years ago
  16. amistre64
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    when ab = bc; they are parallel; but thats not the only case ...

    • 2 years ago
  17. amistre64
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    if you can determine the angle that the vectors span from each other; then you can prove if they are parallel or not as well :) 180 and 0 are parallel vectors

    • 2 years ago
  18. estudier
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    normal to one is normal to the other...

    • 2 years ago
  19. Alexis1994_13
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    okay,I got it :D Thank ya a lot.

    • 2 years ago
  20. amistre64
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    2 , 6 2k-2, 5k-4 ----------- 4k-4 + 30k-24 = 34k -28 ..... :)

    • 2 years ago
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