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How to find unknown values in a matrix?

  1. Mar 24, 2017 #1
    1. The problem statement, all variables and given/known data
    how to find this
    ELI2K5K.png

    2. Relevant equations
    none

    3. The attempt at a solution
    determinant??
     
  2. jcsd
  3. Mar 24, 2017 #2

    berkeman

    User Avatar

    Staff: Mentor

    Yes, expand the determinant. That should give you an equation that may let you solve for combinations of x and y that satisfy the equation... :smile:
     
  4. Mar 24, 2017 #3
    thanks :)
     
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