Tag: cofactor expansion
- Determinants and Their Properties: det as Signed VolumeDefines the determinant both by the Leibniz formula with permutation signs and by cofactor expansion, characterizes it through multilinearity and alternation, proves det(AB)=det(A)det(B) and the invertibility criterion, and reads det as signed volume.MathematicsLinear AlgebraUndergraduatelinear algebradeterminantmultilinearitycofactor expansioninvertible matrices~38 min
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