A-Level CAIE Further Math A2 2.2.2—Determinants and inverses Topic Practice

• understand the cases that may arise concerning the consistency or inconsistency of 3 linear simultaneous equations, relate them to the singularity or otherwise of the corresponding matrix, solve consistent systems, and interpret geometrically in terms of lines and planes e.g. three planes meeting in a common point, or in a common line, or having no common points.