CCEA A2 maths - C3 20th may 2016

Original post by habzi

anyone got the paper?

Yeah I do. Not sure how I can send it though?

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Reply 41

OP

Original post by TomFitness

It will technically be at least an A as 60/75 is 80% (and we can assume grades will definitely not be scaled down) but it's pretty **** that getting an A* now is going to be very hard. Even looking at past papers any of them would never require you to form an equation like qu6. I'm just ranting now��

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They flipping better scale the marks up and grade boundaries down cause it was so difficult from 6-8! Think I got 1-5 all right but lost a lot of marks on the back page I fear :frown:

bricking it for C4 now!!!!!😭😭😭😭😭

Reply 42

Original post by Sparklez10

They flipping better scale the marks up and grade boundaries down cause it was so difficult from 6-8! Think I got 1-5 all right but lost a lot of marks on the back page I fear :frown:

bricking it for C4 now!!!!!😭😭😭😭😭

How did u do question 4? I know I've got 4/5 marks but I've messed up somewhere as I kept getting 0

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Reply 43

OP

Original post by TomFitness

How did u do question 4? I know I've got 4/5 marks but I've messed up somewhere as I kept getting 0

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yeah I did at first too but the reason is because some of the area is under the curve and thus will give you a negative number The answer is 8 as the area between pi and o for one of the curves is 2. All the areas are the same so you do 4 (as there was 4 parts of the curve essentially) 4x2 gives you an area of 8!

Reply 44

Original post by Sparklez10

yeah I did at first too but the reason is because some of the area is under the curve and thus will give you a negative number The answer is 8 as the area between pi and o for one of the curves is 2. All the areas are the same so you do 4 (as there was 4 parts of the curve essentially) 4x2 gives you an area of 8!

Yeah damn I hope I get some marks as my method was correct. I'd also like to see people method for 8(b) if anyone got it correct

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Reply 45

OP

Original post by TomFitness

Yeah damn I hope I get some marks as my method was correct. I'd also like to see people method for 8(b) if anyone got it correct

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yeah you will for sure don't worry!! Was 8b the last one the integration one?

Reply 46

Original post by Sparklez10

yeah you will for sure don't worry!! Was 8b the last one the integration one?

Yeah I'm pretty certain I got 61-62 overall. Does anyone know how much marks will be scaled up?

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Reply 47

OP

Original post by TomFitness

Yeah I'm pretty certain I got 61-62 overall. Does anyone know how much marks will be scaled up?

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You take out a factor of 4/3! Then integrate 1/1-sin^2 which you change to 1/cos^2 and intgrate cos^2! I'm not sure how much they will scale them but hoping it will be big step up from previous years due to the difficulty

Reply 48

Mr.bob

16

Original post by Sparklez10

You take out a factor of 4/3! Then integrate 1/1-sin^2 which you change to 1/cos^2 and intgrate cos^2! I'm not sure how much they will scale them but hoping it will be big step up from previous years due to the difficulty

aye that is what i did as well.
For question 7, do you think it was enough to make logical statments for why it was always positive ie in 7.i, X^2 is > X where X^2 is always gives a positive value thus result is always positive? :s-smilie:

EDIT: if not then sayanora A* 'casue thats 7 marks down the shitter already( plus i messed up the newton-raphson bullcrap up but i think everything else is okay)

(edited 7 years ago)

Reply 49

ozmo19

16

Original post by TomFitness

Yeah I do. Not sure how I can send it though?

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Take a picture with your phone and attach the picture and post it in

Reply 50

Assassin2015

Original post by Mr.bob

aye that is what i did as well.
For question 7, do you think it was enough to make logical statments for why it was always positive ie in 7.i, X^2 is > X where X^2 is always gives a positive value thus result is always positive? :s-smilie:

EDIT: if not then sayanora A* 'casue thats 7 marks down the shitter already( plus i messed up the newton-raphson bullcrap up but i think everything else is okay)

See the thing is for question 7, it makes sense to all of us but i don't think thats what the examiners will be looking for, I did the same as you

Reply 51

OP

Original post by Mr.bob

aye that is what i did as well.
For question 7, do you think it was enough to make logical statments for why it was always positive ie in 7.i, X^2 is > X where X^2 is always gives a positive value thus result is always positive? :s-smilie:

EDIT: if not then sayanora A* 'casue thats 7 marks down the shitter already( plus i messed up the newton-raphson bullcrap up but i think everything else is okay)

I didn't get 7 but I would say that will get some marks if not all yeah!!

Reply 52

Mr.bob

16

Original post by Assassin2015

See the thing is for question 7, it makes sense to all of us but i don't think thats what the examiners will be looking for, I did the same as you

hmm, question 7(i) was worth 4 marks which is alot just for completing the square and a statement so hopefully they will credit our way as well. I mean they cant argue with the facts.

Reply 53

OP

Original post by ozmo19

Take a picture with your phone and attach the picture and post it in

Please !! Really wanna go over the paper again

Reply 54

Mackersr

1

For partial fractions question i got the wrong remainder (x^2 instead of x^2 -1) and therefore the rest of the question i did wrong. (A/x and b/x^2) resulting in simultaneous equations. Would i be able to get any marks out of 10 for follow through?

Reply 55

ImageUploadedByStudent Room1463770248.024170.jpg

ImageUploadedByStudent Room1463770287.422176.jpg

ImageUploadedByStudent Room1463770317.323645.jpg

Ignore my random working out🙄

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Reply 56

Itsmeey

1

What were the marks for the last few questıons? It got cut off

[QUOTE=TomFitness;64998989
] ImageUploadedByStudent Room1463770248.024170.jpg

Ignore my random working out🙄

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Reply 57

Original post by Itsmeey

What were the marks for the last few questıons? It got cut off

I binned my paper but afaik
7i was 4
7ii was 7
8(a)I was 3
ii was 6
And the last part was 5

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Reply 58

Assassin2015