The Student Room Group

Edexcel IAL Core Mathematics - C12 - WMA01 - JUNE 2016

Scroll to see replies

Original post by ToxicPhantom007
the centre was (a,0)
so circles eq will be (x-a)^2+(y-0)^2=a^2 because a is the radius
and in the second part substitute x with 4 and y with -3 to get a
i got it like 3.125


Ditto

Posted from TSR Mobile
Original post by Najlac
It was definitely not easy, but it wasn't too hard either. I know many people at my school found it difficult so I'm sure the grade boundaries will be similar to the January 2016 grade boundaries, if not, lower. I guess the difficulty of the paper depends on how many past papers you've done, some people who found the exam very easy have done literally all the papers since 2007 lol


I did papers since 2005 this year was the hardest C12 IMO

Posted from TSR Mobile
Reply 122
Avatar for Najlac
Najlac
4
Original post by Saad69
I did papers since 2005 this year was the hardest C12 IMO

Posted from TSR Mobile


Really? I found the June 2014 c12 paper a lot more challenging
Whew! I was skeptical of the divide by 2 in that first part.And I did +16 because I saw a similar question in Past Papers and just applied that logic here.
Original post by jamessmith 2202
till what i could remember..not in the same order though!
1. p=1.5, q=63
2. a. 14.556, b. 7.278 , cant remember
3. a. x< or equal to 4.5
b. x> 1.5 or x< -5 X< -5 and 1.5<X<4.5
4. arithmetic440066
5. centre(x-a)^2 + y2= a^2A= 25/8
6. angle sin 19.5 and -30
7. geometric0.817539
8. grapha- (8/5,4/5) b- (20/9, 10/9)
9. log Y^2 = 32/Xx= 0.5y=8
10. Q(x)a= -10b= 13
11. sectorarea = 0.654
12. some angle question pi/12 and 5pi/12
13. integration 11/64


The only answers I can remember right now are 1,2,3,6,8,11 which are the same as yours.
EDIT:I also got the same for 12.
(edited 7 years ago)
Oh yeah,I got √n=√50
And for the segment question,How did you guys attempt it? I created 2 equations for the 2 out of 4 segments and used substitutions.
(edited 7 years ago)

1.

Hey can anybody go through the trig identities question, it was 1-2cos(theta-PI/5) = 0, PI<theta<PI then ii) was 4cos^2x + 7sinx-2=0 i think for 0<=x<=360

(edited 7 years ago)
MY ANSWERS
1. p=1.5, q=63
2. a. 14.556, b. 7.278 , 30.556
3. a. x< or equal to 4.5
b. x> 1.5 or x< -5 and 1.5<X<4.5
4.arithmetic series quest a)4 b)400 c)didnot solve
5 the surd question a) k=32 b) 5 sqrt 2 c) n=50
6. log question sim. eq. x=0.5 y=8
7.centre(x-a)^2 + y2= a^2A= 25/8 = 3.125
8. angle sin 19.5 and -30
9. geometric series n= 39
10. graph x coordinates A= 8/5 B=20/9 and in the transformed graph we had to multiply y values with 3/2
11. Q(x)a= -10 b= 13
12. sectorarea = 0.654
13. some angle question pi/12 and 5pi/12
13. integration 0.33 (i know this is not exact as asked in the question)
(edited 7 years ago)
Reply 128
Avatar for Riri18
Riri18
Original post by Najlac
Really? I found the June 2014 c12 paper a lot more challenging


This was the hardest C12 paper till date for sure. 😓
I wouldn't say it was the hardest.Personally I found it a bit challenging but still a little easier than june 2014
phymath tutor has said that he won't upload model answers of unofficial mrkschemes. **** :frown:
https://pbs.twimg.com/media/CjUAtIbUUAAEf2s.jpg
Original post by ToxicPhantom007
MY ANSWERS
1. p=1.5, q=63
2. a. 14.556, b. 7.278 , 30.556
3. a. x< or equal to 4.5
b. x> 1.5 or x< -5 and 1.5<X<4.5
4.arithmetic series quest a)4 b)400 c)didnot solve
5 the surd question a) k=32 b) 5 sqrt 2 c) n=50
6. log question sim. eq. x=0.5 y=8
7.centre(x-a)^2 + y2= a^2A= 25/8 = 3.125
8. angle sin 19.5 and -30
9. geometric series n= 39
10. graph x coordinates A= 8/5 B=20/9 and in the transformed graph we had to multiply y values with 3/2
11. Q(x)a= -10 b= 13
12. sectorarea = 0.654
13. some angle question pi/12 and 5pi/12
13. integration 0.33 (i know this is not exact as asked in the question)


Do you remember what question 9 and 11 asked?

Posted from TSR Mobile
Original post by khassan
Do you remember what question 9 and 11 asked?

Posted from TSR Mobile


Find the least value of N and find Q(x) I think.
Original post by OnTheHorizon
Find the least value of N and find Q(x) I think.


Ohh..I got n as 66

Posted from TSR Mobile
Original post by OnTheHorizon
Find the least value of N and find Q(x) I think.


Here is what I did

Posted from TSR Mobile
1464211952093.jpg43.7KB
Original post by khassan
Here is what I did

Posted from TSR Mobile

It's wrong.The correct answer is 39.I ended up writing 1 number higher(40) So I lose 1 mark out of the total.You had to use logs.
EDIT:Wait You're referring to a different question.I'm talking about the other N where you had to use logs and stuff.As far this answer goes I think 66 is right.
(edited 7 years ago)
Original post by OnTheHorizon
It's wrong.The correct answer is 39.I ended up writing 1 number higher(40) So I lose 1 mark out of the total.You had to use logs.
EDIT:Wait You're referring to a different question.I'm talking about the other N where you had to use logs and stuff.As far this answer goes I think 66 is right.


Wow bro u nearly gave me a heart attack

Posted from TSR Mobile
Original post by OnTheHorizon
It's wrong.The correct answer is 39.I ended up writing 1 number higher(40) So I lose 1 mark out of the total.You had to use logs.
EDIT:Wait You're referring to a different question.I'm talking about the other N where you had to use logs and stuff.As far this answer goes I think 66 is right.


Do you remember the question?

Posted from TSR Mobile
Original post by khassan
Wow bro u nearly gave me a heart attack

Posted from TSR Mobile


:tongue: Sorry,I don't remember the question exactly.
Original post by OnTheHorizon
:tongue: Sorry,I don't remember the question exactly.


hey do u think my answers are correct ? ive mentioned them above

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you