00329    a2200097   4500082001500000100003700015245009900052260004500151300001600196650001900212  a512.5bOPE  aThe Open University of Sri Lanka  aMathematicsbunit 5 b simultaneous linear algebraic equations matrix algebra and determinants  aNawalabThe Open University of Sri Lanka  a129p.c29cm  aLinear algebra