t- formula and subsidiary angle (1 Viewer)

[Nelly_04]

does the syllabus require us to know the proofs for the t-formula and subsidiary formula, or is knowing the formula just enough?

if anyone has any t-formula or subsidiary angle questions from past exams can u plz post them up with the answers.

thanks

 

[CM_Tutor]

Have a look at the thread "help: trig question" started by +GriM ReApeR+ - I'll bring it up for you.