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secondary 4 | A Maths
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umi
Umi

secondary 4 chevron_right A Maths chevron_right Singapore

please help with qn 15&16. thank you

Date Posted: 3 years ago
Views: 436
Christmas MT
Christmas MT
3 years ago
For qn 16, it is the same idea but in this case since they have given you a min point.
A min point means the dy/dx = 0 at that point. From there you can obtain the equation for y. (Same method as qn 15)

as for part (ii) the idea is to use find all solution satisfying dy/dx = 0, follow by a 2nd derivative test to see which solution gives a maximum.

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Christmas MT
Christmas Mt's answer
3276 answers (A Helpful Person)
Hopefully this is clear