Ask Singapore Homework?

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



Question

secondary 3 | A Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Dawn
Dawn

secondary 3 chevron_right A Maths chevron_right Singapore

Please help with proving of identities of (i), (k) & (l). Thank youu!!

Date Posted: 3 years ago
Views: 166

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
A rough idea; there are many things we can do, such as the usage of basic trigonometric identities, performing basic factorisation, combining into single fractions , introducing conjugates and so on.