Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

junior college 2 | H3 Maths
2 Answers Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Faraz Ahmed
Faraz Ahmed

junior college 2 chevron_right H3 Maths

Hi, please help☹️ It should be solved by differentiation

Date Posted: 6 years ago
Views: 374

See 2 Answers

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Wen Guotai Daniel
Wen Guotai Daniel's answer
66 answers (Tutor Details)
1st
Only did half way. But the train of thoughts is clear. Hope it helps. The solution should be x=2. Observation on the graph shows there should only be one such point. There might be other 2 real roots (i doubt so) for g'(x)=0. You can check with your graph calculator. Cheers.
Wen Guotai Daniel
Wen Guotai Daniel
6 years ago
To get a better idea of the distance^2 function graph, further differentiate g(x), i.e, g"(x) = 12x^2 +2 =0 don't give any real roots. That means there is no local max or min along the graph. It helps to verify that x=2 is the only solution.
Faraz Ahmed
Faraz Ahmed
6 years ago
Hey, please, can you give me the entire solution by solving it on a separate page? ☹️☹️
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Tham KY
Tham Ky's answer
6052 answers (Tutor Details)
...
Faraz Ahmed
Faraz Ahmed
6 years ago
Thanks