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Trignometry Formulae (1 Viewer)

heeell0

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

dumarab

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mercury said:
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?
 

dwarven

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

lolokay

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krissy.xx said:
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
 

Gussy Booo

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Thank you very much! So helpfull.

I've memorized all of these inside out now ! :)
 

beniriley

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