The Student Room Group

FP3 Diagonal matrices in the exam

As I'm sure you are all aware, questions where you are asked to reduce a symmetric 3x3 matrix into diagonal form take a really, really long time to answer compared to any other type of question at A-Level. Do these questions come up on the exam papers? It would seem a little odd to me to have a question that takes ~20mins to answer on the paper.

Any info is much appreciated,
VannR

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