Ask Singapore Homework?

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



Question

secondary 4 | A Maths
3 Answers Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Damsieee
Damsieee

secondary 4 chevron_right A Maths chevron_right Singapore

Sry I’m rlly dumb idk how to do the 2nd part (ii) PLS HELPPP WAHHHHHHHH I gg to cry

Date Posted: 1 year ago
Views: 222

See 3 Answers

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jeremy
Jeremy's answer
6 answers (Tutor Details)
1st
See second answer for part 2
Damsieee
Damsieee
1 year ago
EEEEEE THXXXXXXXXXXXXXXXXXXX U ACTUALLY REPLIED WITHIN LIKE 12 HRSSSSSS TYSM MR
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jeremy
Jeremy's answer
6 answers (Tutor Details)
2nd part.
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jovita Lim Si Yi
Jovita Lim Si Yi's answer
10 answers (Tutor Details)
Sufficient to prove
Damsieee
Damsieee
1 year ago
Ohhh rite rite so that’s y my Cher say my ans wrong. I just googled the diff between first and 2nd derivatives. I tot both meant the same thing as my Cher didn’t explain. Never tot it’ll be dis simple. Thx ah :)
Jovita Lim Si Yi
Jovita Lim Si Yi
1 year ago
First derivative is to find gradient, see whether the graph is upward or downward sloping, or whether theres stationary point.
Second derivative is to only check whether the stationary point is a maximum, minimum or stationary point of inflection
Damsieee
Damsieee
1 year ago
Ahhh I see. Tysm for teaching me :)))