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Notes Over 4.3

Notes Over 4.3. Evaluate Determinants of 2 x 2 Matrices. Stands for the determinant of a matrix. Multiply diagonally, down first. Opposite products going up. Notes Over 4.3. Evaluate Determinants of 3 x 3 Matrices. Repeat the first two columns. Multiply diagonally, down first.

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Notes Over 4.3

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  1. Notes Over 4.3 Evaluate Determinants of 2 x2 Matrices Stands for the determinant of a matrix. Multiply diagonally, down first. Opposite products going up.

  2. Notes Over 4.3 Evaluate Determinants of 3 x3 Matrices Repeat the first two columns. Multiply diagonally, down first. Opposite products going up.

  3. Notes Over 4.3 The Area of a Triangle Find the area of the triangle with the given vertices.

  4. Notes Over 4.3 The Area of a Triangle Find the area of the triangle with the given vertices.

  5. Notes Over 4.3 The Area of a Triangle Find the area of the triangle with the given vertices.

  6. Notes Over 4.3 The Area of a Triangle Find the area of the triangle with the given vertices.

  7. Notes Over 4.3 Using Cramer’s Rule for a 2 x 2 System Use Cramer’s Rule to solve the linear system. Find the determinant of the coefficient Matrix To find your x replace the x ’s in the coefficient Matrix with the constants To find your y replace the y ’s in the coefficient Matrix with the constants

  8. Notes Over 4.3 Using Cramer’s Rule for a 2 x 2 System Use Cramer’s Rule to solve the linear system. Find the determinant of the coefficient Matrix To find your x replace the x ’s in the coefficient Matrix with the constants To find your y replace the y ’s in the coefficient Matrix with the constants

  9. Notes Over 4.3 Using Cramer’s Rule for a 2 x 2 System Use Cramer’s Rule to solve the linear system. Find the determinant of the coefficient Matrix To find your x replace the x ’s in the coefficient Matrix with the constants To find your y replace the y ’s in the coefficient Matrix with the constants

  10. Notes Over 4.3 Using Cramer’s Rule for a 2 x 2 System Use Cramer’s Rule to solve the linear system. Find the determinant of the coefficient Matrix To find your x replace the x ’s in the coefficient Matrix with the constants To find your y replace the y ’s in the coefficient Matrix with the constants

  11. Notes Over 4.3 Using Cramer’s Rule for a 2 x 2 System Use Cramer’s Rule to solve the linear system. Find the determinant of the coefficient Matrix To find your x replace the x ’s in the coefficient Matrix with the constants To find your y replace the y ’s in the coefficient Matrix with the constants

  12. Notes Over 4.3 Using Cramer’s Rule for a 2 x 2 System Use Cramer’s Rule to solve the linear system. Find the determinant of the coefficient Matrix To find your x replace the x ’s in the coefficient Matrix with the constants To find your y replace the y ’s in the coefficient Matrix with the constants

  13. Notes Over 4.3

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