C1 and C2 Maths, AQA, 24/05/10

Will someone please post the core 2, and core 1 papers?

Thanks!

did any1 get 5.55 for area of trapezium?

for 8d.) where you had to work out the xcoordinate did anyone get 0?

what did everyone get for that geometrical transformation ?
y=2^(4x-3)

What did people get for the very last question on core 1?

7)b)ii) K > (greater than or equal to) 1
K < (less than or equal to) -1/7

not sure y they wanted equal to but after looking at questions equal to signs i just decided to give my answers with equal to
made sense to me

yh thts rite, i gt tht 2


If any1 did the c1 paper 2day also i have answers:

not sure if all but they are almost in order:

1) gradeint = -2/3
1) y= -2/3x + 9
2y = 3x + 5/2

B has coordinates (4,2)

surds questions:
14 - 6 x square root sign with 5 inside
-11 - square root sign with 5 inside

the cubic x^3 graph question i think related to polynomials:
the 3 linear factors tht i got were: (x+5)(x+3)(x-1)=0

the answer for remainder question, r=25

dont know what question but its a following question after the polynomial question...

answers: (i think these were the integration question answers)
-18
-15
42/5 or 42/3 cnt read my writing
18
48/3

gradient = -4
y= -4x + 6

circles:
(x+something)^2 + (y-6)^2 = 25

y = 3/4x + 7/2 or 1/2 cnt read my writing agen

differention part, the 3d shape:
question 6 i think
= 7

6)a)ii) 72x - 6x^3 <-- we had 2 proove this..

0

= -72 so is a maximum

turn this => 2x^2 -20x + 53 in to the completed square form:
2(x-5)^2 + 3

7)b)ii) k> (greater than or equal to) 1
k< (less than or equal to) -1/7

Lol these are my answers...
not sure if there right, if u have any answers different or same to mines please do let me know.

I hope this helps

thanks
rep wud b nice im new

yh thts rite, i gt tht 2


If any1 did the c1 paper 2day also i have answers:

not sure if all but they are almost in order:

1) gradeint = -2/3
1) y= -2/3x + 9
2y = 3x + 5/2

B has coordinates (4,2)

surds questions:
14 - 6 x square root sign with 5 inside
-11 - square root sign with 5 inside

the cubic x^3 graph question i think related to polynomials:
the 3 linear factors tht i got were: (x+5)(x+3)(x-1)=0

the answer for remainder question, r=25

dont know what question but its a following question after the polynomial question...

answers: (i think these were the integration question answers)
-18
-15
42/5 or 42/3 cnt read my writing
18
48/3

gradient = -4
y= -4x + 6

circles:
(x+something)^2 + (y-6)^2 = 25

y = 3/4x + 7/2 or 1/2 cnt read my writing agen

differention part, the 3d shape:
question 6 i think
= 7

6)a)ii) 72x - 6x^3 <-- we had 2 proove this..

0

= -72 so is a maximum

turn this => 2x^2 -20x + 53 in to the completed square form:
2(x-5)^2 + 3

7)b)ii) k> (greater than or equal to) 1
k< (less than or equal to) -1/7

Lol these are my answers...
not sure if there right, if u have any answers different or same to mines please do let me know.

I hope this helps

thanks
rep wud b nice im new



786
90
MashAllah

no, it was -1/7 < k < 1

damn I think I got the remainder as 35 - I'm sure I put 35 - must've miscounted... for ****'s sake. Everything else seems correct though..

One's I've highlighted are the ones where I got different answers to you.

i got X co-ordinate of Q =0

yes I think I got Q = 0..

I keep getting C1/C2 mixed up on inspection..

was the remainder 25 or 35... I'm going to be so pissed if I've lost a mark due to me being a retard.

HOWEVER - if I subbed the values then simplified the expression into a form such as say 7 -6 +17 - 9 = and then calculated it wrong.. would I get the mark?

dont know whether it is correct, but i remeber that i got 35 too, so i dont know..