Ask Singapore Homework?

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



Question

secondary 4 | A Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Jothi
Jothi

secondary 4 chevron_right A Maths chevron_right Singapore

Please help to prove this following I
identity.

Date Posted: 2 years ago
Views: 307

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
One cubic identity and two trigonometric identities are used here. Can you spot them?
Jothi
Jothi
2 years ago
Thank you