Ask Singapore Homework?

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



Question

secondary 4 | A Maths
4 Answers Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Ong Jia Zhi
Ong Jia Zhi

secondary 4 chevron_right A Maths chevron_right Singapore

How to solve?

Date Posted: 4 months ago
Views: 39

See 4 Answers

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Lai Yu Chen
Lai Yu Chen's answer
4 answers (A Helpful Person)
1st
Phylicia Tong
Phylicia Tong
4 months ago
Your final answer can only contain 'a' and any peripheral numbers ie answer cannot have x and/or y variables.
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Phylicia Tong
Phylicia Tong's answer
190 answers (A Helpful Person)
I assume u know the trig identities. Drop me a note if u haf qns.
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Phylicia Tong
Phylicia Tong's answer
190 answers (A Helpful Person)
Alternative
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Eric Nicholas K
Eric Nicholas K's answer
2471 answers (Tutor Details)
Something like this would be good.

The other method would be to use the 'sum-to-product' identities (which the other tutor has used in the workings).