This module extends the vector products can be further extended to look at volumes of 3D shapes. It also looks at the equations of lines and planes, angles between them and shortest distances.
Inverse matrices – Smart Notebook – Contains the whole module
Inverse matrices 2×2 – Powerpoint – Finding the inverse of a 2×2 matrix.
Inverse matrices 3×3 – Powerpoint – Finding the inverse of a 3×3 matrix.
Products of inverse matrices – Powerpoint – Finding the inverse of a product of matrices.
Exam Questions – Powerpoint – Exam questions involving inverse matrices and determinants.
Inverse of a 2×2 matrix
Inverse of a 3×3 matrix