Daryl Ho's answer to Michael's Junior College 1 H1 Maths Singapore question.

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Daryl Ho
Daryl Ho's answer
4 answers (Tutor Details)
1st
You can either use the 2nd derivative or 1st derivative test to determine max and min points here.
I would recommend the 2nd derivative (method 1) because d2y/dx2 is easy to obtain