KOH QI CHENG's answer to Kirthana's Junior College 2 H3 Maths question.

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KOH QI CHENG
Koh Qi Cheng's answer
2 answers (Tutor Details)
1st
Find y using substitution done.
KOH QI CHENG
KOH QI CHENG
6 years ago
Oh you have to show that x value is the smalleest by wither doing 1st derivative or 2nd derivative. Personally i would 2nd derivative test. Hope it helps