lesterine's answer to lana <3's Secondary 3 A Maths Singapore question.
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Hope this helps
Date Posted:
2 years ago
hi ! ty it was very helpful ! I just still dont undersatnd why you put 1 in the brackets. For example for (i) you put (1-10-1) in the brackets, i just dont undersatnd why. If you could explain why that would be wonderful tyy !!
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