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anonymous

  • 5 years ago

Linear Algebra Q: In RREF form 1 0 1 5 0 1 0 -1 0 0 0 0 so x+z=5 and y=-1....is z a free variable? how would i write up the soln to this matrix?

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  1. amistre64
    • 5 years ago
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    what was wrong with the other solution?

  2. amistre64
    • 5 years ago
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    since the last row is all zeros, there is an infinite number of solutions; 0 always = 0

  3. amistre64
    • 5 years ago
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    yes, the 3rd variable is free so you would have an homogenous part and a particular part

  4. amistre64
    • 5 years ago
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    z<-1,0,1> + <5,-1,0> would be parametric solution

  5. anonymous
    • 5 years ago
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    so, would z=t and then x=5-t? than kyou for ur response....if u posted previous respnses,....i did n't see them. apologies

  6. amistre64
    • 5 years ago
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    thats one way to write it up yes :)

  7. anonymous
    • 5 years ago
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    much appreciated

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