Recent content by mathodman

  1. M

    Proof a property for a 3x3 matrix

    alright, i guess its not a forum for discussions, thanks anyway
  2. M

    Proof a property for a 3x3 matrix

    Hi! i don't know maybe matrix A is like zero matrix. I guess its something easy but i just don't get it right now
  3. M

    Proof a property for a 3x3 matrix

    Let a 3 × 3 matrix A be such that for any vector of a column v ∈ R3 the vectors Av and v are orthogonal. Prove that At + A = 0, where At is the transposed matrix.
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