Hello guys, I am currently revising FP1 and sometimes depending on how unlucky I am get the position on where to multiply the inverse matrix wrong.
Here is an example:
If both A B and C are 2x2 matrices and I have to find B:
AB=C should I do A-1AB=A-1C or AA-1A=CA-1
Plese enlighten because it is really annoying me as this could penalise me in the exams.