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Hayatcakes

http://i729.photobucket.com/albums/ww292/akatushi101/algeeeeeeeeeee.jpg I need help on the Four questions .

  • 2 years ago
  • 2 years ago

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  1. Cynosure-EPR
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    =) Give me just a minute to write them down and snap a pic.

    • 2 years ago
  2. Hayatcakes
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    Okay :)

    • 2 years ago
  3. Hayatcakes
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    also these are Matrices

    • 2 years ago
  4. lalaly
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    \[\left[\begin{matrix}2 & 3 \\ 5 & 1\end{matrix}\right]-\left[\begin{matrix}-1 & 7 \\ 9 & 8\end{matrix}\right]=\left[\begin{matrix}2-(-1) & 3-7 \\ 5-9 & 1-8\end{matrix}\right]=\left[\begin{matrix}3 & -4 \\ -4 & -7\end{matrix}\right]\]

    • 2 years ago
  5. Cynosure-EPR
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    Are the first/third ones division or addition?

    • 2 years ago
  6. Hayatcakes
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    the first one is addition and the third one is addition

    • 2 years ago
  7. Cynosure-EPR
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    Thanks!

    • 2 years ago
  8. lalaly
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    oh u do the same, just change the minus sign to plus

    • 2 years ago
  9. Cynosure-EPR
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    It's uploading.. la dee da!

    • 2 years ago
  10. Cynosure-EPR
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    Here you go (the first problem is last, because I thought it was a division sign!) http://postimage.org/image/kmf3y8d8n/

    • 2 years ago
  11. Hayatcakes
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    oh okay thanks !

    • 2 years ago
  12. Cynosure-EPR
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    You're welcome!

    • 2 years ago
  13. Hayatcakes
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    why is the third problem not possible?

    • 2 years ago
  14. Cynosure-EPR
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    Because the two matrices are of different dimensions. If you go ahead and try to attempt it, you'll see quickly that you've run out of numbers and have two left over. It simply doesn't work. =)

    • 2 years ago
  15. Hayatcakes
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    I have three questions left from this matrice ..can you help me :S?

    • 2 years ago
  16. Cynosure-EPR
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    Sure thing!

    • 2 years ago
  17. Hayatcakes
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    http://i729.photobucket.com/albums/ww292/akatushi101/ALGEBROOO.jpg

    • 2 years ago
  18. Hayatcakes
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    the 6th question there is no "-" or " + " so i think we can not operate it?

    • 2 years ago
  19. Cynosure-EPR
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    That would assume that you multiply them.

    • 2 years ago
  20. Hayatcakes
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    but it is set like this [ 1 2 ][1] [3 7] [5]

    • 2 years ago
  21. Cynosure-EPR
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    It's uploading! You can only multiply matrices if the rows of the first equals the columns of the second. Basically, how that works is you take the terms as such: [ a b ] [1] [ c d ] [5] so that the new matrix is: [ a*1 + b*5 ] [ c*1 + d*5 ]

    • 2 years ago
  22. Cynosure-EPR
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    Here ya go: http://postimage.org/image/p1sw2isxt/

    • 2 years ago
  23. Hayatcakes
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    oh okay.

    • 2 years ago
  24. Cynosure-EPR
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    Do you understand?

    • 2 years ago
  25. Hayatcakes
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    Yes.. :) I'm sorry these were the last ones. . these are the last remaining problems http://i729.photobucket.com/albums/ww292/akatushi101/ALGEE222.jpg

    • 2 years ago
  26. Cynosure-EPR
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    I'm sorry, but I have to head off to class now!=( You can try re-posting the new set for someone else to answer or wait a few hours for my response.

    • 2 years ago
  27. Hayatcakes
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    okay thanks for all the help!

    • 2 years ago
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