C3 January 2013 25/01/2013

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What a coincidence, I was trying out C3 solomon paper B, and I came across with the sinP+sinQ question o:
I paused it there though.
I dont enjoy half angle stuff either :c

aha thank you :smile:

I might try it then, I was hoping to avoid solomon papers :P

Reply 981

iTabasco

Original post by Libby18

aha thank you :smile:

I might try it then, I was hoping to avoid solomon papers :P

Haha, me too!
But I finished all the past papers too soon, so incase C3 disappears out of my head I decided to try solomon papers c:

Reply 982

Libby18

Original post by iTabasco

Haha, me too!
But I finished all the past papers too soon, so incase C3 disappears out of my head I decided to try solomon papers c:

aha I might do book work now the review exercises as I didnt do all of it
how are you feeling for this exam?
hope its a nice paper
I thought 2012 june was a good paper but others in my year said it was horrid (it was our mock).
One of the further mathematicians told me it was awful and she cried after the exam but still got 99 UMS or something

Reply 983

StrawHat_Shifaz

hey everyone. i'm done with all the pastpapers and i wanted to know which paper according to you guys was the toughest and most challenging one? i thought jan 2007 needed some extra brain. what are yours?

Reply 984

BobTheBuilder94

Did anyone elses marks drop from the papers 2011 onwards compared to before 2011?

Reply 985

BobTheBuilder94

Original post by tamersaeed

graph is best way but you can get range by substatution

How do you do it like that? I can never always draw the graphs properly, also I want another way to double check...

Reply 986

na5h

Still haven't started!! :frown:

I dont know how im going to get an 'A' at this level!!!

Reply 987

suncake

Original post by StrawHat_Shifaz

Logs question at the end of Jan 2010 needed some "extra brain" for me :lol:

Reply 988

cooldudeman

does anyone else have m2 on the same time as c3?

i have to take the exam at 1pm instead of 2pm, strange...

Reply 989

StrawHat_Shifaz

Original post by suncake

Logs question at the end of Jan 2010 needed some "extra brain" for me :lol:

lol yea that b part.......... i gave up on that one and then read in the markings..... :banana:

Reply 990

stardude8

Hi everybody,
I have a question on domains for the C3 exam this Friday. Some domains in mark schemes have 'x e R', followed by the actual domain, such as x>2. Other functions do not have the 'x e R', and have just the actual domain. Can someone explain to me when to put 'x e R' in the domain and when not to?
By the way I know its meaning, that x is an element of all real numbers.

Also, if x e R is part of the domain, in the inverse function, is the range f^-1 (x) e R (followed by rest of domain) too?

Reply 991

Mister Cery

Kinda worried about this exam, haven't had much time to revise because of other exams :frown:

Reply 992

Qmakz

Can I use a pencil in this exam, it's a fairly thick pencil, I could post pictures of the thickness, I just hate writing Maths in pen especially trig proofs. It doesn't state on the front if the paper that we must write in pen, does anybody know?

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Reply 993

mattd75

should be blue/black ink i believe becuaase the scan the papers often

Reply 994

fayled

Original post by Libby18

aha thank you :smile:

I might try it then, I was hoping to avoid solomon papers :P

I'm not a fan of solomon but I'd advise doing some papers - they're good especially with the trigonometry questions, where you have to use a previous identity you proved to solve an equation.

Does anybody know of any proofs we need to know of? I've only come across proving trigonometric identities and derivatives in differentiation...

(edited 11 years ago)

Reply 995

gaffer dean

Original post by fayled

I'm not a fan of solomon but I'd advise doing some papers - they're good especially with the trigonometry questions, where you have to use a previous identity you proved to solve an equation.

Does anybody know of any proofs we need to know of? I've only come across proving trigonmetric identities and derivatives in differentiation...

You also need to know how the double angle formulae is derived from the addition formulae.

(edited 11 years ago)

Reply 996

cookie555

How to get range I have no idea positive rep for anyone willing to help, thanks in advance :smile:

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Reply 997

posthumus

Original post by cookie555

How to get range I have no idea positive rep for anyone willing to help, thanks in advance :smile:

Is the range ' x can not equal -1 ?'

If so, then I'll explain how I worked it out :smile:

Reply 998

Padouken

Original post by cookie555

How to get range I have no idea positive rep for anyone willing to help, thanks in advance :smile:

Uhhh - imagine your standard asymptote type graph ( can't remember name) which is 1/x - then apply the translations to the x axis..

EDIT - I haven't touched this **** in a while so I'll guess (educated lol) 0<y<4/3