C1 & C2 discussion - Jan 2013

[I am not a robot]

what was the question i forgot if i see the question ill be able to clear ur doubt
and btw do you remember question 11 was out of how much ?

It was factorise -4x^3+1 I think it was something like 3,5,5

 

[catherine_7]

It was factorise -4x^3+1 I think it was something like 3,5,5

do you mean -4x^3+1x ? if yes then the answer should be correct

 

[Hamzeh S]

Guys Last Question what was the equation we need to deffreiniate ? anyone can remember plzzzz

 

[shalala]

noo its right -2 sry im not sure i think 2 or -2 forgot

In C1, does anyone remember how many marks were on the last question? and on the last part of the sequences question, which was finding Q?

That's what I got! Do you know if I'd get any marks for my answer to Q1? (see above)

-for the sigma i got 60. cuz u1 had to be found out by putting 1.
-for C i got 31/something. (and its absolutely rightt cuz i confirmed from my math teacher!)

 

[I am not a robot]

do you mean -4x^3+1x ? if yes then the answer should be correct

do you mean -4x^3+1x ? if yes then the answer should be correct

Yeah! Thank f***for that

 

[Hamzeh S]

-for the sigma i got 60. cuz u1 had to be found out by putting 1.
-for C i got 31/something. (and its absolutely rightt cuz i confirmed from my math teacher!)

well do u remember last question what was the derivative ? :S i need to confirm smthn

 

[I am not a robot]

-for the sigma i got 60. cuz u1 had to be found out by putting 1.
-for C i got 31/something. (and its absolutely rightt cuz i confirmed from my math teacher!)

It was 64. U1 was 5 U2 was 9 u3 was 17 u4 was 33

 

[Beedo]

I'm sure of those:
The constant in integration was equal to 8
point Q (9,-1)
Sigma 64

please if anyone remember the question of the area 49/4 (I mean the things that we had to get before calculating the area....I'm too scared that I made the rest of this question wrong too not only the area part)
If anyone can remember that question please write it with the marks for each part in it

 

[Mitch Planko]

I did two silly mistakes in C2, the first is the sequence question number B I did it n =12 cuz I thought the equation was ar^n-1, but all the logarithm thingy is done correctly
the other is the trigonometry question I found the theta (principal angle) = 113.6 and not 66.4 which made me make all the solutions wrong but all the steps and concept is right

how many marks I would lose in that

 

[Beedo]

I did two silly mistakes in C2, the first is the sequence question number B I did it n =12 cuz I thought the equation was ar^n-1, but all the logarithm thingy is done correctly
the other is the trigonometry question I found the theta (principal angle) = 113.6 and not 66.4 which made me make all the solutions wrong but all the steps and concept is right

how many marks I would lose in that

n=12 is the right answer
I made it n=11 and the year is 2023
Do you remember the area question in c1?

 

[Beedo]

I'm sure of those:
The constant in integration was equal to 8
point Q (9,-1)
Sigma 64

please if anyone remember the question of the area 49/4 (I mean the things that we had to get before calculating the area....I'm too scared that I made the rest of this question wrong too not only the area part)
If anyone can remember that question please write it with the marks for each part in it

anyone please

 

[Mitch Planko]

n=12 is the right answer
I made it n=11 and the year is 2023
Do you remember the area question in c1?

n = 12 is not right every body said its not right and n =11 is right add 11 to 2013 you will get 2024 for me I got 2025

 

[Mitch Planko]

anyone please

It was the area of the triangle OAB, where O was the origin (0,0), A was (-7,0) and B was (0, 7/2). I sketched it and then could solve it​

 

[Mitch Planko]

Im taking c1,c2,c3,c4,m1,m2 this jan for the first time
I don't know what to do with the rest of papers when I making many mistakes in the easiest ones (c1,c2)....they were my only hope to get a good grade in the A-level

man this is really tough you can't do them all at once and on jan session this is pretty hard

 

[yayifications]

Unofficial C1 mark scheme up at midnight. No idea about C2.

 

[Hamzeh S]

I'm sure of those:
The constant in integration was equal to 8
point Q (9,-1)
Sigma 64

please if anyone remember the question of the area 49/4 (I mean the things that we had to get before calculating the area....I'm too scared that I made the rest of this question wrong too not only the area part)
If anyone can remember that question please write it with the marks for each part in it

Ya Integeration constant i got 7 or 8 forgot Point Q Was 1-(1/sqrt(x))=2/3 so by solving it u got sqrt of x=3 therefore x=9 and y=-1 u subtisute in the equation the gradient we equate to was 2/3 right ? and the dy/dx was 1-1/sqrt(x)??
Sigma i got 5+9+17+33= (i wrote 59 by mistake its supposed to be 64)
The Area its 49/4
0.5*7/2*7=49/4

 

[Hamzeh S]

OK Guys when finding Q i made a silly calculation mistake and ended with a wrong X therefore equated in a the equation and got a wrong y so how many marks will i lose assuming i found the Gradient and equated it to the derivative and tryed to solve it ? its out of 5

 

[Afraah]

Okay okay okay okay Uhmmmm for C2 people, You guys mustve found it easy it becz like come on, uve been doing it in Alevels, and repeating it in A2 *-*" cz obv u wouldnt be in ur frst year of Alevels, cz we dint hit May yet xP ! .. So uhm yeah, like u guys did C1 and C2 nd M1.. so C2 at this year, mightve been a kick ass paper fr u all
Good to hear tht ^_^ (Y)

Okay one sntnce for C1 -.-" ... WTH was on Edexcel's Examiner's MIND ._." bleh! to me it was 50% good and 50% bad!

 

[svenas]

Okay okay okay okay Uhmmmm for C2 people, You guys mustve found it easy it becz like come on, uve been doing it in Alevels, and repeating it in A2 *-*" cz obv u wouldnt be in ur frst year of Alevels, cz we dint hit May yet xP ! .. So uhm yeah, like u guys did C1 and C2 nd M1.. so C2 at this year, mightve been a kick ass paper fr u all
Good to hear tht ^_^ (Y)

Okay one sntnce for C1 -.-" ... WTH was on Edexcel's Examiner's MIND ._." bleh! to me it was 50% good and 50% bad!

Hey can u grade me on the thread I posted plzz?

 

[BeBo^.~]

In c1 the 2nd question its y=6x+9 right???