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There was one, maybe two questions at most on Form 1 as I recall that theoretically required the use of trig.
First, the most you would need to remember is SOHCAHTOA (http://www.gazinotes.com/KS3-GCSE/AT4-Trig-sohcahtoa.htm). They're not going to throw Euler's identity or randomly ugly hyperbolic tangents or cosecant and stuff... it's very basic stuff.
I suggest knowing the 3-4-5 triangle too...
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That's the best I can remember. Dont stress too much about it!
~Nate
Originally posted by Romey
How much trig is needed for the test- such as sin, cos, tang and so on?