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anonymous

  • 5 years ago

can someone help me with matrices?

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  1. anonymous
    • 5 years ago
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    Hey Rld!

  2. anonymous
    • 5 years ago
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    Like how do I find and inverse of a matrix using the product of elementary matrices

  3. anonymous
    • 5 years ago
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    Hey mhp :D

  4. anonymous
    • 5 years ago
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    I need to find the inverse of a matrix using elementary matrices What doe sthat mean?

  5. 2bornot2b
    • 5 years ago
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    The inverse of a given matrix is a matrix, which when multiplied with the given matrix gives identity.

  6. amistre64
    • 5 years ago
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    there is something called a cofactor matrix, that is tranposed and then divided out by the determinate of the original

  7. anonymous
    • 5 years ago
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    no I need to use the product of the elemntary matrices idk

  8. amistre64
    • 5 years ago
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    youll have to define what that is

  9. anonymous
    • 5 years ago
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    LOL It tells me to find the inverse of a amtrix using elementary matrices

  10. anonymous
    • 5 years ago
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    What do u think that means?

  11. anonymous
    • 5 years ago
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    if i copy from a book if AB=BA = I

  12. anonymous
    • 5 years ago
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    theres more to it though

  13. amistre64
    • 5 years ago
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    \begin{pmatrix}a&b&c\\e&f&g\\h&j&k\end{pmatrix} \begin{pmatrix}+|\begin{array}c f&g\\j&k\end{array}|\end{pmatrix} cant tell if that formats

  14. anonymous
    • 5 years ago
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    can u guys plz help me with my question?

  15. amistre64
    • 5 years ago
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    \[\begin{pmatrix}+|\begin{array}c f&g\\j&k\end{array}|& -|\begin{array}c e&g\\h&k\end{array}|& +|\begin{array}c e&f\\h&j\end{array}|\\ -|\begin{array}c b&c\\j&k\end{array}|& +|\begin{array}c a&c\\h&k\end{array}|& -|\begin{array}c a&b\\h&j\end{array}|\\ +|\begin{array}c b&c\\f&g\end{array}|& -|\begin{array}c a&c\\e&g\end{array}|& +|\begin{array}c a&b\\e&f\end{array}|\\ \end{pmatrix}^T\frac{1}{det}=inverse\] those sub matrixes are the determinants values of those things

  16. amistre64
    • 5 years ago
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    dunno if its what its calling for tho :/

  17. Zarkon
    • 5 years ago
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    those are not elementary matrices

  18. anonymous
    • 5 years ago
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    noooo they want something simple but obviously they didnt show an example and like i cant figure it out

  19. Zarkon
    • 5 years ago
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    here is an example ... http://stattrek.com/matrix-algebra/how-to-find-inverse.aspx

  20. amistre64
    • 5 years ago
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    bummer, i memorized it for naught lol

  21. anonymous
    • 5 years ago
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    Thanks amistre lol

  22. amistre64
    • 5 years ago
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    isnt that the gauss jordon?

  23. anonymous
    • 5 years ago
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    Ya s/t like that LOL

  24. anonymous
    • 5 years ago
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    Zarkon that is what I needed

  25. anonymous
    • 5 years ago
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    Thanks Guys :DDDD

  26. anonymous
    • 5 years ago
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    ty zarkon

  27. anonymous
    • 5 years ago
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    i didnt have to type the rst of the stuff

  28. anonymous
    • 5 years ago
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    lol didnt forget abt yesterday mth. Do u still need help?

  29. anonymous
    • 5 years ago
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    im just getting it from the book :P

  30. anonymous
    • 5 years ago
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    hmmm correct me if i am wrong on a coordinate plane the sine and cosine waves to find their angle measurement would it just be the same same way as finding them in a regular circle then to find their line measure how to do that if it was just plot right in the middle of a coordinate plane

  31. anonymous
    • 5 years ago
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    |dw:1327259052486:dw| This is how u wld draw it

  32. anonymous
    • 5 years ago
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    this is a sin curve

  33. anonymous
    • 5 years ago
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    now there is another thing of evaluating triangles like the degrees and measurements sohcahtoa

  34. anonymous
    • 5 years ago
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    |dw:1327259201697:dw| have u ever seen this?

  35. anonymous
    • 5 years ago
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    |dw:1327259258899:dw|

  36. anonymous
    • 5 years ago
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    Do u know what I am talking abt?

  37. anonymous
    • 5 years ago
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    umm sohcahtoa i know

  38. anonymous
    • 5 years ago
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    ohhh so u r not referring to that

  39. anonymous
    • 5 years ago
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    sin curve cosine curve i know

  40. anonymous
    • 5 years ago
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    wait

  41. anonymous
    • 5 years ago
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    ok i guess i am XD

  42. anonymous
    • 5 years ago
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    i just have not seen the second to last drawing

  43. anonymous
    • 5 years ago
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    oh it is abt cast

  44. anonymous
    • 5 years ago
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    |dw:1327259558434:dw| these are the quadrants

  45. anonymous
    • 5 years ago
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    In the first quadrant A=ALL is positive In the second quadrant S = Sin only sin is positive while verything else is negative In the third quadrant T= Tan only tan is positive In the fourth quadrant C=only cos is positive

  46. anonymous
    • 5 years ago
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    This is referring to triangles in the coordinate plane. It all depends in which quadrant the triangle is in

  47. anonymous
    • 5 years ago
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    ooo

  48. anonymous
    • 5 years ago
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    I dont think that was clear

  49. anonymous
    • 5 years ago
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    LOL I need to review my trig I learnt it so long ago

  50. anonymous
    • 5 years ago
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    K I gotta go :((((( i am behind in my work

  51. anonymous
    • 5 years ago
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    Too much work and little time I hope my prof will give me an extension. She aleady gave me one last week lOL

  52. anonymous
    • 5 years ago
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    all i know about the coordinate plane is that quadrant 1 = y is +, x is + quad 2 = y is +, x is- quad 3 = y is - , x is - quad 4 = y is - , x is +

  53. anonymous
    • 5 years ago
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    lol

  54. anonymous
    • 5 years ago
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    you very lucky

  55. anonymous
    • 5 years ago
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    bb

  56. anonymous
    • 5 years ago
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    ty

  57. anonymous
    • 5 years ago
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    LOL I didnt help u much

  58. anonymous
    • 5 years ago
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    help is help i appreciate all i get

  59. anonymous
    • 5 years ago
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    I wish i wld be able to help but i am so busy. i tutor and then I took on this subbing job

  60. anonymous
    • 5 years ago
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    I AM SO BUSY I HATE IT. I WISH I HAD TIME FOR MYSELF

  61. anonymous
    • 5 years ago
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    :P

  62. anonymous
    • 5 years ago
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    U became so serious suddenly lol

  63. anonymous
    • 5 years ago
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    lol

  64. anonymous
    • 5 years ago
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    Its like u r a diff person

  65. anonymous
    • 5 years ago
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    i like to make fun of life

  66. anonymous
    • 5 years ago
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    never serious but it gets to the point :)

  67. anonymous
    • 5 years ago
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    lol

  68. anonymous
    • 5 years ago
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    besides where did you see me do such a thing ?

  69. anonymous
    • 5 years ago
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    What be serious ??????? right now lol

  70. anonymous
    • 5 years ago
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    hehe

  71. anonymous
    • 5 years ago
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    no can do sawy

  72. anonymous
    • 5 years ago
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    huh?

  73. anonymous
    • 5 years ago
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    i dont know being serious is something i can do easily i dont know why

  74. anonymous
    • 5 years ago
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    LOL hard to believe gonna get back to work

  75. anonymous
    • 5 years ago
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    go go go

  76. anonymous
    • 5 years ago
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    LOL I dont know how to leave os

  77. anonymous
    • 5 years ago
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    i dont be the one to cause apocalyse

  78. anonymous
    • 5 years ago
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    huh? what doe sthat mean?

  79. anonymous
    • 5 years ago
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    apocalypse is kinda --end of the world

  80. anonymous
    • 5 years ago
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    mth r u someone else?

  81. anonymous
    • 5 years ago
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    im lazy to make another account and have a bad memory of pw

  82. anonymous
    • 5 years ago
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    LOL the comp remembers it for u

  83. anonymous
    • 5 years ago
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    I have a feeling that u r hero

  84. anonymous
    • 5 years ago
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    LOL no response

  85. anonymous
    • 5 years ago
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    i hate flipping pages to find the pw

  86. anonymous
    • 5 years ago
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    then there is email account

  87. anonymous
    • 5 years ago
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    then theres another account

  88. anonymous
    • 5 years ago
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    this account

  89. anonymous
    • 5 years ago
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    and that

  90. anonymous
    • 5 years ago
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    ugg

  91. anonymous
    • 5 years ago
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    It simpler than u think

  92. anonymous
    • 5 years ago
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    U amy be hero lol

  93. anonymous
    • 5 years ago
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    of course its easy but im lazy remember

  94. anonymous
    • 5 years ago
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    R u hero?

  95. anonymous
    • 5 years ago
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    nope

  96. anonymous
    • 5 years ago
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    LOL u r acting like him lol

  97. anonymous
    • 5 years ago
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    how does he act?

  98. anonymous
    • 5 years ago
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    LOL not telling u

  99. anonymous
    • 5 years ago
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    well hes typing now

  100. anonymous
    • 5 years ago
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    so i dont see how i can be him/her

  101. anonymous
    • 5 years ago
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    LOL OK

  102. anonymous
    • 5 years ago
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    cutter10 question

  103. anonymous
    • 5 years ago
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    ^^

  104. anonymous
    • 5 years ago
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    lol no

  105. anonymous
    • 5 years ago
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    lol humor is fun

  106. anonymous
    • 5 years ago
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    LOL

  107. anonymous
    • 5 years ago
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    i have leeched an hour of you work time not that i want you to leave but i really want you to get your work done

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