Need help solving Matrix question

Linear spaces and subspaces, linear transformations, bases, etc.
themonsoonkid
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Joined: Thu Feb 16, 2012 5:47 pm
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Need help solving Matrix question

Postby themonsoonkid » Thu Feb 16, 2012 5:52 pm

What would be the values of a 3*1 matrix for which Ax = 1x, where

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A= (1 2 -1)
   (1 0   1)
   (4 -4 5)


Options

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A. -k          B. k           C. -k         D. k
    k             2k              k            2k
    2k            k               k            -k

nona.m.nona
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Re: Need help solving Matrix question

Postby nona.m.nona » Thu Feb 16, 2012 9:52 pm

What did you get when you multiplied each column vector by A?


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