I'm working through all the trig stuff on examsolutions.net and I'm now up to this video. It's about proving trig identities using these 'factor formulae', but I don't remember ever hearing about them or seeing them before. Having I missed something, is it a part of an earlier unit? Or is this not on our spec?
MEI C4 - Trig "Factor Formulae" what are they??? Watch
- Thread Starter
- 20-06-2016 06:46
- 20-06-2016 10:57
http://www.trigonometry-help.net/trig-formulas.php contains these formulae.