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
n
N

secondary 4 chevron_right A Maths

what is complementary rule

Date Posted: 6 years ago
Views: 264
Jiayang
Jiayang
6 years ago
Complementary angles sum up to 90deg
Cosine and sine functions are 90deg out of phase

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Soh Xin Yi
Soh Xin Yi's answer
2 answers (Tutor Details)
1st
Hope this explanation helps! Feel free to ask if you have any other questions