MATH 112 Lecture 17: triangular matrices, theorem, determinant and elementary row operation, properties of determinant, detA^T = detA theorem
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MATH 112 Lecture 16: Invertible 2x2 and 3x3 matrices, determinants, theorem, practice problems with cofactor expansion
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MATH 112 Lecture 17: triangular matrices, theorem, determinant and elementary row operation, properties of determinant, detA^T = detA theorem
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