IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => GCE AS & A2 Level => Queries => Topic started by: Electrophilic on May 12, 2010, 06:48:44 pm
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What did you think of it?
I wrote Paper 12. The format was really different to the past papers and I didn't even finish! :(
Just wondering how everyone else found it...?
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DO NOT DISCLOSE ANY INFORMATION ABOUT THE PAPER
Paper was easy, although it was lengthy. I had trouble checking my paper. I've made blunders. I will make up for it in M1
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well even i did my math paper 12 tday.. i messed up!!! i juss hope the threshold is low!!!:( :(
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hmm...yea paper was gr8.............ahh.........damnit wanted 75..........and then i realised had made one tiny mistake......arghh and yea had one doubt when neone is free and 24 hrs hrs plz discuss........thanx
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Also, didn't finish... I hope I do ok...
It was very different to the past papers, much harder than anything that I had ever seen.
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it ws a bit tough..blunders
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dscus doubts ppl
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C'mon guys it wasn't that different to other pastpapers.They just made tiny confusing changes. It just feels bad when I do pastpapers and get 75 at home and go mess up in the exam. Anywayz I dif what i could do :)
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it ws a bit diferent n lengthy
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well the paper wasnt that confusing! but there was little bit of tricks in some questions but overall i guess it went fine
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the exam was verryyyyy eassyyy!! it was just a bit long and abit tricky but actually fun!
i probably got a minimum of 72/75
=D
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Why is everyone including the genius nid saying it was lengthy
Damit.
Because i finished it 5 minutes before the end time which i decided to waste on f(x)=k (last question)
lost two marks confirmed but
everything so far seems right.
I am begining to suspect i left some question...JESUS
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Please do not discuss the exam paper until 24 hours have passed.
Thank you.
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Please do not discuss the exam paper until 24 hours have passed.
Thank you.
barrier has been passed
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Please do not discuss the exam paper until 24 hours have passed.
Thank you.
24 hour^
can we discuss now
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lol.
errmmm- wasn't it today ?
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lol.
errmmm- wasn't it today ?
it started at 11 Am in Jeddah Saudi Arabia and its practically mid night.
?its over innit?
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Nopes.
That's 12 hours so far mate.
You gotta wait till tomorrow 11 am
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Nopes.
That's 12 hours so far mate.
You gotta wait till tomorrow 11 am
i will be back tomorrow at 11 th*n ;p
Take care
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i will be back tomorrow at 11 th*n ;p
Take care
you can talk about all you like then :)
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it was tough
The toughest one I've faced
I think I did good enough though
it was pretty long and I barely made it
I spent lots of time on the sine graph for no good reason. I don't know what happened to me there but I managed to finish and revise and found some silly mistakes that I edited.
I think the GT will be low.
oh yeah and when I reached the last page I saw the 8 marks question. IT WAS SCARY. I was scared b4 even reading the question. and the last question was really different from past years. got stuck there for a while but solved it eventually. Don't know though whether I did it correctly or not
I just hope I can get that A or A* if there's an A*
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can we discuss now is the time period over...................
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i think we can discuss yeah =D
guys what where the answers for the expansion question???
and the last part of the last question was stuppiidd -.-
but yaay i just lost 3 marks :D
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the paper waz really easy....compared to the pastpapers.....bt i left the last question becoz i made a mistake in questions 8 nd 9.....so i had to repeat them.....bt overall i'll get anythng btwn 64-75
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for binomial question i got a=2/5
for questions 2 was a=6?
and what about questions 10? there was one part which they ask u to find between which vlues is the function increasing so was it x less than or equal to 0.5 and x greater than or equal to 5/2?
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yaaay i got a=2/5 too =D
and what was the coefficient of x squared?
and yes a=6 =D
yeah i remember something like that, but i also remember another value for i cant remember which question it was k>4 right?
and there's one that had k=13 right?
lool :D
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yessss k=13 :D
and i dont remember the coefficient for x squared but i remember that it was in decimals and was kinda weird!!!!
but for the question where x is less than or eual to 1/2 and greater than or equal to 5/2 many people said that there was no 'equal to' or something like that
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i got 2.4 as cooeffficient of x squared!
yah k=13
wat wer the C coordinates?
n wt was the eqn of the line of the tangent?
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C coordinates: (5,5) ??
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yeah got tht!
area of tht curve?
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i think my coeffecient of x squared was wrong :/
anyways yeah C was 5,5
and the equation was y=5X+4.5
and the value of x for which its an increasing function was k>4 as i remember
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aah cant remember.. :(
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@Aly area of curve was 10 and 2/3 or 32/3
right everyone?
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The paper was awesome, i'm sure i got 74/75 wat im not sure of is the g inverse(3) the very last question, i got the write answer but its not write answer within the range of the inversers function so i got 0.34 rad, but i'm thinking it should have been 2.8 rad since this is in the range of b/w pi/2 and 1.5pi. wat do u guys think? will i loose a mark or will i get 75/75???
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YAAAAAAAAAAAAAAAAAAAAAAAAAAAAAY the last should've been 2.80 RAD right??
happy happy happy =D =D
and yeahprobably just one mark :)
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@Aly area of curve was 10 and 2/3 or 32/3
right everyone?
I remember that my a=2/5 and 6( or something) and area was pretty much 10&2/3.
The exam was pretty easy but i wasted a lot of time during the exam, so I messed up in bits of Q10-Q11 (Probably all of the marks lost went here). And I somewhat felt the exam was lengthy compared to previous exams and my timing was horrible. But what's done is done! Let's concentrate on our next exams :P
@tmisterr, shouldn't there have been 2 values of the inverse of g(3)? bleh
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yeah i got the area as 10.6... :)
nd i got 2.8 in the last qn...i wish its ryttt!!
shud b just a mark tho!
any idea hw many marks that 'showing the volume formula' is?
i messd tht one up :(
i guess i ddnt manage my time properly! :(
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which question had 10 whole 2/3 i dont remember.?
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@ifraha18 the area question of the shaded region
@aly i put 2.8 too! i hope its right, though i tried putting it into the inverse and i got 3 which means it correct =D i hope :P
showing the volume? it was 4 marks
and a was 6 when volume is 24pie
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Thanks :)
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can nione solve that area question shaded region
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can nione solve that area question shaded region
i cant remember the equations, if you'd give me them i can do it :)
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u ppl did it by area of trapezium _ area under curve ryt.?
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x less than 1/2 and greater than 5/2?
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u ppl did it by area of trapezium _ area under curve ryt.?
exactly :)
area of trapezium was 20
area under curve was 9.33
so area of shaded= 10.67 or 10 and 2/3
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x less than 1/2 and greater than 5/2?
yeah i guess but i left the half part out :(
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lolx its ok..i i wrote x less than or equal to 1/2 and greater than or equal to 5/2 but i dont think that was correct
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What were the values of P ? (in the vector question)
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What were the values of P ? (in the vector question)
part i) p was 5
part ii) p=4 or p=-2
right?
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Yeah, I got 5 in (i) most likely. But for some reason I couldn't get the right value for (ii) XD.
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I think it was 3 and -1....
nop im sure its 4 and -2, i asked a whole load of students
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My bad ..it was 4 and -2....I think it was 9^.5 + 1
hey u remember the equation for finding k...or how u got k. ??
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p was 4 and -2
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it was (x-2)^3/3 with limits 3 and _1...when puttin the _1 limit i cancellecd _3 with 3 insteading of makin it -27?3..??rest vrithin ws corect howmni mrks wil get deducted.
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find the set of values of k fow ehich 4_3sinx=k has no solution..how did u do this.?
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my tangent equatin was y=5x-4.5
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I messed up binomial theorem (first part)
and f(x)=K last part
Thats pretty much (hopeful of 70/75) it
and the area shaded was so easy
you had to find the area of trepezium
and th*n area under curve with limits of -1 and 3
and subtract them.
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what was the value of 'a' in question 2? where the volume of revolution was 24pi?
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what was the value of 'a' in question 2? where the volume of revolution was 24pi?
it was 100 percent a=6
i confirmed it by putting 6 into the equation in my calculator to find the volume and it indeed gave 24pie
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i mde a very silly mistake in the shaded area..but i thnk only one or 2 marks wil be deducted...wen puting the _1 limit i cancelled the -3 by the 3 in the denominator...instead of takiin its cube..:(n den divin it
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I don't really mean anything, but you guys should stop worrying about how many marks you're going to lose. It's going to make things worse :-X just try to make up all of the mistakes by preparing for the next math paper.
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man i was pretty sure my answer was correct too....i put it into the equation and all....but now people are saying its 6.... :( i got something like a=4.76.... :(
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hey guys wat abt the last question where no sloutions were required for f(x )= k.... i got less than -1 and greater than 7....fingers crossed if this rite i should get 74............damnit last q ans should be in range 2.8 and stupid me wrote 0.34...arggh...
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how did u ppl do this Fx=k has no solution in last question....
can nione solve it
it ws 4_3sinx=k has no solution
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how did u ppl do this Fx=k has no solution in last question....
can nione solve it
it ws 4_3sinx=k has no solution
wat was ur ans......nething similar to mine.....
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i messed this up real bad...i took a very stupid method to solve it..can u solve urs here..
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one way is looking at the range of ur graph.....easy above 7 and below -1
or u can take max value of sinx and min value of sinx that is -1 and 1 and sub in equation where fx should< k ...got it and u get two ranges......where on a value of k no solutions
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-1>k>7.
that was the answer. i m sure about this.
i drew graph of 4-cos3x instead of sin.
man i m such a moron.
how many marks are they gna cut for this?
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haha,,,i took square n den deb the discrimant equals to les thn zero..:P lol
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It should be 1 not -1..
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+1>k>7.
4-3 (sin270)= 7
4-3 (sin90) = 1
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yes, you're right.
typo mistake.
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-1>k>7.
that was the answer. i m sure about this.
i drew graph of 4-cos3x instead of sin.
man i m such a moron.
how many marks are they gna cut for this?
2 marks were for this part so i guess -2 cos u basically did the whole part wrong
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oh... well.
waisay i thought misread=1 mark. :(
but i got the wrong value for A in the range cos of my wrong graph too. dunno if tehy'll allow error carried forward for that..... :(
I messed it up good and proper. :o
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I too had a wrong graph and wrong value of A...I think there wont be an error carry forward cos question was of only 1 mark....but lets C...By the way way how many marks did diagram question carried ??
M sure A value one was only 1 mark...
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graph was 2 marks.
and i got worng value of a in question 2 as well. :o :(
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I don't remember anything in Q10 or 11 besides the graph.
What were the question in Q10 and 11?
I just want to remember what i've solved and what not.
Was it incorrect to use the discriminant for f(x)=k?
Thanks.
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hey guys wat abt the last question where no sloutions were required for f(x )= k.... i got less than -1 and greater than 7....fingers crossed if this rite i should get 74............damnit last q ans should be in range 2.8 and stupid me wrote 0.34...arggh...
I know how you feel, i also wrote 0.34 I realized it just as the examiner was walking away with the papers i felt like shooting myself in the foot!
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Hey how many marks was the last part of q11 for?
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I know how you feel, i also wrote 0.34 I realized it just as the examiner was walking away with the papers i felt like shooting myself in the foot!
exactly if i had just seen the range instead of being excited and doing the last part a bit carelessly as i finished
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what was the frst er in the p.??wen de sum of frst three terms was 35
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guys you are wrong
for that question f(x)=k
they asked for values of k that doesnt have a solution
obviously it must be
k<1 and k>7
they didnt asked for the range, if they asked for the range then its 1<k<7
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what was the frst er in the p.??wen de sum of frst three terms was 35
first term was 45
p was 5 in vector question
i bascically found the paper ok but i messed only on 1 question!
guys what is the answer for area od the shaded in the curve
32/2??? or something like that?
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r u guys sure tht a was 45.?koz mi tchr told us we hd to ignore de negtive sign of r
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wat was ur n?? was it 41
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graph was 2 marks.
and i got worng value of a in question 2 as well. :o :(
dude thats only 1 or 2 marks you are probably loosing which means around 71 or 70.
And thats a A my friend.
CHEERS
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and yeah wasn't coefficient of a 8/3??
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dude thats only 1 or 2 marks you are probably loosing which means around 71 or 70.
And thats a A my friend.
CHEERS
yeah,man.
but you know its the sinking feeling k i could ha scored a perfect.....but lol this isnt the first time it happened..
anyway how r ur papers going? mine pretty ordinary... :-\
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yeah,man.
but you know its the sinking feeling k i could ha scored a perfect.....but lol this isnt the first time it happened..
anyway how r ur papers going? mine pretty ordinary... :-\
Yesterday's was the first
and it went pretty good(messed up binomial first part and f(x)=k)4 or 3 marks lost.
Buh i will be completely annilated by S1.I am sure of that.
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you're taking the entire a-levels in one go?
y?
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wht do u ppl think the grade trend for A be this year???
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you're taking the entire a-levels in one go?
y?
me i am taking it in one go cause in my country we cant do it by one by one
i am doing 3 A levels AS and A2 included in one go and i got only 2 months to study for all of it!
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the exam was except for the last page i think i mis calculated the F(X)=K one i made the steps correct but i entered a wrong values 1 and -1 instead of 7 and 1 how many marks would i lose for it and i think i made a sign error in a question of the AP progression but also the steps are correct would it cost a lot of marks!!!! ;)
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are you doing you o/level.
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OMG :-\
i got ma "a" in the vol. que. as cube root of 108 because i integrated "a" not realizing it was a constant!!!!!!!!!
do u think am gonna luze all 8 marks, or will it be ecf????????
plz reply, iam worried :'(
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OMG :-\
i got ma "a" in the vol. que. as cube root of 108 because i integrated "a" not realizing it was a constant!!!!!!!!!
do u think am gonna luze all 8 marks, or will it be ecf????????
plz reply, iam worried :'(
which q r u talking about??
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OMG :-\
i got ma "a" in the vol. que. as cube root of 108 because i integrated "a" not realizing it was a constant!!!!!!!!!
do u think am gonna luze all 8 marks, or will it be ecf????????
plz reply, iam worried :'(
I dotn think you will lose all 8 marks, if your workign is correct you can get up to 5
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Are u guys talking about pure maths paper 12? because I did pure maths paper 13.