## Ask Singapore Homework?

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

## Question

secondary 4 | A Maths

Anyone can contribute an answer, even non-tutors.

##### Mi

chevron_right chevron_right

Thank you

Date Posted: 7 months ago
Views: 66
Eric Nicholas K
7 months ago
Wait
Eric Nicholas K
7 months ago
Remember to use the techniques of graph sketching which I have sent you several months ago.

### See 5 Answers

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
##### Eric Nicholas K's answer
5235 answers (Tutor Details)
1st
Looks like this.
Date Posted: 7 months ago
Syjiaxuan
7 months ago
For (III) if u multiplied -1 to the LHS to make it -3sin2x, shouldn’t u multiply the RHS too? I think it should be
-3sin2x - 1.5 = -3x/pi
Eric Nicholas K
7 months ago
Well yes, I do make careless errors from time to time. Will update with a new diagram at a later time.
Eric Nicholas K
7 months ago
Kathy, I have updated the diagram.
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
This is to show u how to uds eqn so that u can plot the graph later
Date Posted: 7 months ago
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Hope this helps
Date Posted: 7 months ago
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
##### Eric Nicholas K's answer
5235 answers (Tutor Details)
Updated
Date Posted: 7 months ago
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
##### Eric Nicholas K's answer
5235 answers (Tutor Details)
The graph looks something like this when plotted on Desmos graphing calculator.
Date Posted: 7 months ago