Can anyone help me to prove that 2 questions??? I hv try it at least one hour

Ask Singapore Homework?

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

junior college 1 | H1 Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

junior college 1 H1 Maths

Can anyone help me to prove that 2 questions??? I hv try it at least one hour

Date Posted: 6 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

It's just factor formula

Date Posted: 6 years ago

Newzealand

6 years ago

Thanks a lot
May i know how to make cosx+cos5x=2cos2xcos3x??

Jiayang

6 years ago

Factor formula