lesson
Calculating 3×3 Determinants
Calculate the determinant of a 3×3 matrix by cofactor expansion.

Calculate the determinant of a 3×3 matrix by cofactor expansion.
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11th Grade · Math · UK A-Level
6 lessons
Calculate determinants of 2×2 and 3×3 matrices, interpret them geometrically as area and volume scale factors, and identify singular matrices.