Recent content by lardycake

  1. L

    What is the solution for a matrix with a parameter in its determinant?

    Homework Statement Hello all, I have a parameter x of a matrix M = [21, 7 14, 7] the determinant of |(M - xI)| = 0 Homework Equations I is known as the identity matrix The Attempt at a Solution My solution seems to be a bit...