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Math Help - Determinant of matrix

  1. #1
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    Determinant of matrix

    Find the determinant of the matrix

    x , y , z
    1 , 1 , 1
    y+z, x+z , x+y

    should i get a real number?
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  2. #2
    MHF Contributor Calculus26's Avatar
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    should i get a real number?

    Not when there are variables as entries--just work it like any 3x3 det
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  3. #3
    MHF Contributor Calculus26's Avatar
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    I spoke too soon after actually working this determinant I get 0.

    In general you would have variables in the answer
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  4. #4
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    Got it!! Thanks Calculus26 =)
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