This module extends the ideas of the Scalar triple product to look at finding the determinant of 2×2 and 3×3 matrices. It also looks at the rules for manipulating determinants and how these can be used to factorise determinants.<\/p>\n
Determinants 1<\/a> – Smart notebook – Recap on cross products and then introduces the idea of determinants and their geometrical significance.<\/p>\n Determinants 3×3<\/a> – Powerpoint – Demonstrates the algorithm needed for finding the determinat of a 3 by 3 matrix.<\/p>\n Rules for manipulating determinants <\/a>– Powerpoint – Takes you through each of the rules for manipulating determinants<\/p>\n Factorising determinants<\/a> – Powerpoint – A challenging example of how a determinant can be written as a product of linear factors. It can be followed by this worksheet<\/a> and this smartboard file<\/a> can be used to demonstrate solutions to the class.<\/p>\nDeterminant 2×2<\/h3>\n