# C2 - Which formulas will you need to remember ?Watch

This discussion is closed.
#1
I need to know - which formulas will you need to remember for tomorrow's exam and which ones will be given to you in the formula book ? Going through the book, there seems a lot you have to remember. I haven't been paying much attention in classes recently, for various reasons, so in the probable event that I f#@! up tomorrow, how bad would this be, taking into account retakes etc (I got 99 in C1). What things would you suggest I revise or specifically concentrate on in preperation for tomorrow ?

Cheers.
0
12 years ago
#2
Un=arn-1
Sn= [s(1-rn]/1-r
Sinfinitea/(1-r)
l=r(theta)
Asector=1/2r2theta
Asegment=1/2r2(theta-sin(theta))
sin2x+cos2x=1
sinx/cosx=tanx
(x-a)2+((y-b)2=r2 where (a,b) is the centre of the circle...
sin and cos rules
and thats all i can remember.. hope that helped!
1
12 years ago
#3
PS: Its no point just memorising the formula... you should at least know how to apply them to the question... trust me... you have do atleast two past papers.. good luck
0
12 years ago
#4
and all the C1 and GCSE formulae including volumes and surface area of various shapes...You should revise everything... If you think you are capable of doing most of the questions, do some more question on integration and differentiation... they are bound to come up!
0
#5
yeah, cheers mate
0
12 years ago
#6
yeah, cheers mate
no probz... just glad to help
0
12 years ago
#7
u dnt need to memorise ne geometric stuff except the proff for c2
0
12 years ago
#8
(Original post by N0_1_Indian)
u dnt need to memorise ne geometric stuff except the proff for c2
no you do! you have to memorise the formulae listed above... Un and sum of infinite formula...
0
12 years ago
#9
(Original post by N0_1_Indian)
u dnt need to memorise ne geometric stuff except the proff for c2
OK i might be wrong... so who said that... I thought you had to memorise those formulae as well and i have seen past exam questions on it...
0
12 years ago
#10
Also worth at least looking over the proofs for geometric series.
0
12 years ago
#11

You get the cosine rule (in 1 form)

All the Geometric series stuff youll need
- Un, Sn and S to infinity

You get the trapezium rule

You get binomial series stuff which theyve made look complex but its just the basic thing

you get 1 log rule : how to change the base thingy. You know loga B = log B over log a

Youll need to remember all the radian stuff, the trig identities, some more trig, circle theorem formula if there r any and thats about it. And try to remember the sin30 = whatever radians and cos 60 etc etc

tbh if youve got a graphical calculator just write it in...
0
12 years ago
#12
i just text my maths teacher and he sed u dnt need to know all the formulas from GCSE if they need it they will tell u in the question
0
12 years ago
#13
You text your maths teacher ?!
0
12 years ago
#14
(Original post by dec0!)
i just text my maths teacher and he sed u dnt need to know all the formulas from GCSE if they need it they will tell u in the question
yep

(Original post by dec0!)
i just text my maths teacher and he sed u dnt need to know all the formulas from GCSE if they need it they will tell u in the question
0
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