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    I'm having a lot of trouble with this question; I get everything being = 0 for 1a, which I think is wrong, and for 1b I can't get it into row echelon form. Could someone help me please?
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    (Original post by nigelh456)
    I'm having a lot of trouble with this question; I get everything being = 0 for 1a, which I think is wrong, and for 1b I can't get it into row echelon form. Could someone help me please?
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    I could but I am off to work until 20.30 tonight
    hopefully some one else might be around until then
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    (Original post by nigelh456)
    I'm having a lot of trouble with this question; I get everything being = 0 for 1a, which I think is wrong, and for 1b I can't get it into row echelon form. Could someone help me please?
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    1a looks like it has a parametric solution.
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    (Original post by zetamcfc)
    1a looks like it has a parametric solution.
    I'm pretty bad at maths so I don't even know what that means hahaha could you explain it to me?
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    (Original post by nigelh456)
    I'm having a lot of trouble with this question; I get everything being = 0 for 1a, which I think is wrong, and for 1b I can't get it into row echelon form. Could someone help me please?
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    Show working? Haven't checked but row reducing yields x = 0, y = (3/2)z for me
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    (Original post by nigelh456)
    I'm pretty bad at maths so I don't even know what that means hahaha could you explain it to me?
    Well first off, explain how you got everything being 0 for 1a.
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    (Original post by zetamcfc)
    Well first off, explain how you got everything being 0 for 1a.
    okay so I've figured out where I went wrong and redone it. Does this look okay?
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    (Original post by nigelh456)
    okay so I've figured out where I went wrong and redone it. Does this look okay?
    Looks good, don't have the time to go through b) but it's probably right
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    (Original post by nigelh456)
    okay so I've figured out where I went wrong and redone it. Does this look okay?
    I thought there couldn't be any non-zero elements above and below the leading 1 for reduced echelon form ?
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    (Original post by A Slice of Pi)
    I thought there couldn't be any non-zero elements above and below the leading 1 for reduced echelon form ?
    Lol, you're right, I just thought it wanted the answer. Well just a few more manipulations for OP to do, but nothing too drastic (I think).
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    (Original post by zetamcfc)
    Lol, you're right, I just thought it wanted the answer. Well just a few more manipulations for OP to do, but nothing too drastic (I think).
    This is what I get, but I have yet to check this...
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    (Original post by A Slice of Pi)
    This is what I get, but I have yet to check this...
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    It's just the same, but you go all the way to RREF.
 
 
 
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