AQA C3: how did you find it all?

tan^2x =3(3-secx)
sec^2x - 1 = 9 - 3secx
sec^2x + 3secx - 10 = 0
u^2 + 3u - 10 = 0
(u+5) (u-2) = 0

Found the second half too hard and nothing like the past papers.

after question 4 it was really hard. where did all the seven markers and that nine marker come from?!

it has definitely been made harder in the sense they don't lead you through the questions as much. so you could be going off on a complete tangent and never know (thank god for follow through marks!) and is it me or was there a lot more ln and e^x including in the questions than usual?

everyone who took it at my school found it difficult however, so hopefully the grade boundaries will be lowered!

Second half was awful. Remember getting 7.88 for 9 marker. 1/6ln(whatever). And 360e^-1 - 198 for others...

I GOT THAT! 1/6 ln (91/21) which simplified to 1/6 ln (13/3)

That question with making x=cosec(theta) was ridiculous. I just managed to do it, and the worst thing is, I got the whole thing right except when I divided my cosec(theta) I forgot that it was squared on the bottom and just got rid of it, so I lost a lot of marks there :'( SUCH A STUPID MISTAKE.

That paper was the most ridiculous one I've ever done. I hope the grade boundaries are low, otherwise I'll have to dish out 20 quid just to retake it in June..

I was thinking wtf??!! 13/3 isnt a rational number...is it?.... an it didnt say leave it as an exact value or show that the answer can be written as ln(p/q) or something so I just did not know what to do or what to leave it as.

I hated that x=cosec(theta), it was an example of my nightmare integration by substitution question and I literally crawled through it. I got something 0.78 for the final answer.

yes i got that too

it as not quadratic formula

beacuse tanx" = sec"-1

so when you re arrange it its secx"-3secx-10

and then you shoud get 2 and 5

I got 2 and -5. Great.

I got what this dude got

I got -0.5 something, and then I did it at home and got -0.5 something, but the somethings were different. I don't even knoooow.

13/3 is rational (as far as I know...) irrational would be, say 13/root(3) O.o

Aaargh meh. Just going to have to pick myself up and revise like a maniac for Physics on Tuesdays. I guess I can't be hoping for the A* to be coming from Math now!

I flopped this paper hardddd. Have no idea what I'll get but it wont be higher than 50/75 thats for sure

looks like I forgot what an irrational number is. That wasnt on the list of possible mistakes I thought I could make

How did you find the limits? I did something (original limit)=cosec(theta) and solved to find theta. It seemed correct at the time.

It was pretty challenging but I'm feel optimistic about this exam. I'm just hoping I got that A* but I have a habit of making easy mistakes by not reading the questions properly.

Let us hope they lower the grade boundaries!

OHMY**** I FORGOT TO CHANGE THE LIMITS.

Ima be retaking it in June, I see that now already. Greeeat

Thought the last few questions were horrible! Feel really disheartened after putting so much work in and knowing that I will have to resist regardless.. Why was it so horrible!?

I put work into it too and its really cutting me up that I may even get a similar grade to people who did absolutely no work

Exactly! It wasn't similar to any of the past papers. May as well have not bothered and concentrated on my other subjects to be honest!! Soo annoyed