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Inverting a 3x3 matrix using determinants Part 2: Adjugate matrix

Khan AcademySal Khan

Inverting a 3x3 matrix using determinants Part 2: Adjugate matrix

Sal shows how to find the inverse of a 3x3 matrix using its determinant. In Part 2 we complete the process by finding the determinant of the matrix and its adjugate matrix.

2012年11月7日

Invertible Matrix Properties

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Khan AcademySal Khan

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Invertible Matrix Theorem - Expii

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🤔 Which matrix is invertible? A quick visual reminder: ✅ A matrix is invertible if its determinant ≠ 0 ❌ It’s not invertible if the determinant = 0 Understanding determinants helps you see when systems of equations have unique solutions — a key concept in Linear Algebra. 🎓 Learn more with free videos and guided notes: 🔗 https://understandthemath.com #linearalgebra #matrixalgebra #determinant #invertiblematrix #learnmath #understandthemath #mathreels #mathtips #mathstudents #collegealgebra #ma

🤔 Which matrix is invertible? A quick visual reminder: ✅ A matrix is invertible if its determinant ≠ 0 ❌ It’s not invertible if the determinant = 0 Understanding determinants helps you see when systems of equations have unique solutions — a key concept in Linear Algebra. 🎓 Learn more with free videos and guided notes: 🔗 https://understandthemath.com #linearalgebra #matrixalgebra #determinant #invertiblematrix #learnmath #understandthemath #mathreels #mathtips #mathstudents #collegealgebra #ma

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