Math P2 common test had an error on sub-question 3.2. In the second denominator a cos (theta) was missing.
It shows the importance of moderating and checking of papers even at the stage of printing., as some mistakes can still be verified there and an ERRATA be sent to schools, that is common practice even at tertiary institutions. But if the paper is written and a memo is sent to schools already the damage has occurred.
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