Are Product to Sum Trig Identities in Syllabus? (1 Viewer)

[Cleavage]

^

 

[rumbleroar]

No, they aren't. They'll get you to show it in a previous question before asking you to do it.

 

[dunjaaa]

As a 4u student, you should know how to derive them. It's not that hard lol

 

[braintic]

Not sure why they took them out 30 years ago.

That and 3-D coordinate geometry.