Grade 12 Trig - Topic 1 - Compound Angle Identities

[TremainNaidoo]

Thanks a lot this helped so much with my investigation assignment.

[catsinmylife.]

Thank you very much
You helped me out big time with my investigation assignment

[monkmonk]

Thank you so much. Simple methods to find these identities if we forget. Please, have you a video to find easily Tg (A+B)?

[StheMgabhi]

So we don't need to apply the square roots when doing this question?

[lizekaboso]

Shouldn't the x-coordinates of P be negative?

[tanakavicman]

Why did the cos 270+10 change its name at 25 mins