Clifton Ng Wei Zhi's answer to Esther Tang's Secondary 3 E Maths question.

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Clifton Ng Wei Zhi
Clifton Ng Wei Zhi's answer
77 answers (Tutor Details)
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Clifton Ng Wei Zhi
Clifton Ng Wei Zhi
7 years ago
If you're interested, you may google the term "equivalence relations" to understand the concepts of reflexivity, symmetry and transitivity better.