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  1. Alright, future engineers!
    **Determinant:** A single scalar value derived from a square matrix.
    Ex: For `[[a,b],[c,d]]`, `det = ad - bc`.
    Pro-Tip: If `det = 0`, the matrix is NOT invertible (no unique solution for systems!).
    #LinearAlgebra #MatrixTips #STEM #StudyNotes

  2. Alright, future engineers!
    **Determinant:** A single scalar value derived from a square matrix.
    Ex: For `[[a,b],[c,d]]`, `det = ad - bc`.
    Pro-Tip: If `det = 0`, the matrix is NOT invertible (no unique solution for systems!).
    #LinearAlgebra #MatrixTips #STEM #StudyNotes