KOR ZHI HENG's answer to Daniel Lye's Secondary 4 A Maths question.

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KOR ZHI HENG
Kor Zhi Heng's answer
63 answers (A Helpful Person)
1st
Pls check the answer to make sure my answer is right... haha cuz i hadn't studied maths for a year alr (graduated from JC in 2016 lol)