Trignometry Formulae (2 Viewers)

[heeell0]

Truly, you have helped thousands.
Never let it be said that one person can't make a difference.
thanks!

 

[~Fire Jade~]

Notes were useful. Esp for lazy bummers like me. lols. Thanx.

 

[dumarab]

This is a pdf file of a simple list of trig formulae you should probably know off by heart

It appears to me that many people don't have a good idea what trig formulae they need so I made a simple list - it should be in most maths books - for the benefit of those who have never seen such a list before. Again, the best way to tackle trig is understanding where the formulae came from and have a good idea of how to manipulate and convert them - something that can only be achieved through practise.

15th January: Edited to include t-results - they are very easily derived, and Ext I students should know them off by heart

P.S. the old one - I accidentally deleted the attachment, couldn't attach unless I start a new thread

---- Mod edit: ---

---- and yes, is stickied, as useful.

Did you use open office formula to make these?

 

[singh.with.me]

thanks a lot

 

[dwarven]

thank you thank you thank you thank you thank you thank you

 

[lolokay]

can someone plz solve this:
f(x) = 6x³ +10x² - 5x -6 factorise completely

what's that got to do with trig formulae?
(3x+2)(2x +1+rt7)(2x+1-rt7)/2

 

[Rutherfordium]

thankyou!!! this is going to be soooo useful =)

 

[sdx91]

thanks!!

def gonna help 4 3u hsc 2mo lol

 

[iSplicer]

Thanks, was really helpful =)

 

[Gussy Booo]

Thank you very much! So helpfull.

I've memorized all of these inside out now !

 

[blaze.bluetane]

you have forgotten one Double Angle

Tan2x = 2tanx / 1 - tan^2x

btw thats a good formula sheet but need to put that in

+1 yes

 

[beniriley]

Thank you so much!!
Everything else I can do but Trig = Death

 

[xXnukerrrXx]

the attachment link is dead just saying.

 

[Alext_]

could you please re-upload or email it to alex.tong27@gmail.com? Cheers