PhysChemTutor's answer to Zwen's Secondary 4 A Maths Singapore question.

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PhysChemTutor
Physchemtutor's answer
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Zwen
Zwen
3 years ago
Tjanks for the guide.
PhysChemTutor
PhysChemTutor
3 years ago
Ha Ha... working hard!
Zwen
Zwen
3 years ago
Grrrrr I hate math. I'm forced to work hard.