in Linear Algebra recategorized by
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If $\text{A}$ is a square matrix then orthogonality property mandates

  1. $AA^{T}=I$
  2. $AA^{T}=0$
  3. $AA^{T}=A^{-1}$
  4. $AA^{T}=A^{2}$
in Linear Algebra recategorized by
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