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

  2. Hayatcakes
    • 2 years ago
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    Okay :)

  3. Hayatcakes
    • 2 years ago
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    also these are Matrices

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

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

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

  7. Cynosure-EPR
    • 2 years ago
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    Thanks!

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

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

  10. Cynosure-EPR
    • 2 years ago
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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/

  11. Hayatcakes
    • 2 years ago
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    oh okay thanks !

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

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

  14. Cynosure-EPR
    • 2 years ago
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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. =)

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

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

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

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

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

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

  21. Cynosure-EPR
    • 2 years ago
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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 ]

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

  23. Hayatcakes
    • 2 years ago
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    oh okay.

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

  25. Hayatcakes
    • 2 years ago
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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

  26. Cynosure-EPR
    • 2 years ago
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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.

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

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