Tang Jiacheng's answer to Wang Haoyang's Junior College 2 H3 Maths question.

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Tang Jiacheng
Tang Jiacheng's answer
96 answers (Tutor Details)
1st
See if u can understand...
Wang Haoyang
Wang Haoyang
5 years ago
Sorry how did you go from 3rd last line to 2nd last line? I don't really follow that part