Arnold K H Tan's answer to Tarah toh's Secondary 3 E Maths Singapore question.
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Note that its advised to express answers to 2 significant figures for this question. The rationale for Physics is that you cannot calculate more accurately than what is measured - the smallest significant figure used in the question was 2 sig. Fig, so answers should match. For O-levels, they still allow you to get away with 3 s.f.
Date Posted:
4 years ago