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AQA Core 2 maths exam (13/05/2013)

Hey guys,
can anyone remember the log question that was on this exam? it was worth 6 marks.

Thanks
Dan

ps. Hope all of you did well :smile:

Reply 1

ghostwalker

Original post by gamei

Hey guys,
can anyone remember the log question that was on this exam? it was worth 6 marks.

Thanks
Dan

ps. Hope all of you did well :smile:

Try looking on the maths exam subforum.

Reply 2

agharaza94

Original post by gamei

Hey guys,
can anyone remember the log question that was on this exam? it was worth 6 marks.

Thanks
Dan

ps. Hope all of you did well :smile:

ok mate i think i remember

2log(x+7)-log(x+5)=3

i think that was the log question, show that there is only one value of x which satisfie the equation.

you had to turn it into a quadratic forum first.

Reply 3

StalkeR47

Original post by agharaza94

Yeah! And the quadratic equation I came up with was something like.. x^2-6x+9=0 And got x=-3 and x=-3. So it has only one solution of x. I am not sure I you had to use a discriminant as well to prove?

Reply 4

mathsRus

how did find the exam overall?

I found the sequence question a little tricky and also got it wrong. The stretch by a scale factor question was hard as well.

What do you think the grade boundaries for C2 will be?

Reply 5

Magzter

That log question was tough, had to stare at it for 15 minutes before the solution came to me. I remember it well so I recreated it

Reply 6

mathsRus

Original post by Magzter

That log question was tough, had to stare at it for 15 minutes before the solution came to me. I remember it well so I recreated it

Yes the question at first was quite tricky but how do you think the grade boundaries will be set?

The paper to me felt like a bumpy car ride. It was easy, then hard, then easy....so on

Reply 7

StalkeR47

Hello everyone! Check what you got in the exam here! I have all the answers! https://www.dropbox.com/sh/yfe6j2ckbwbw9qp/sQVw4Fn7Lc CORE 1 https://www.dropbox.com/sh/gtezd03r3oq4qhl/aRrLC_jIbc CORE 2 I think I got 65/75 in c2 and 69/75 in c1. I am Happy! :cool:

Please everyone, tell me and others what you got!

Reply 8

mathsRus

Original post by StalkeR47

Please everyone, tell me and others what you got!

Your the best man! I was so worried about the exam but yeah now I am feeling better after comparing my answers to yours.

What do you think about grade boundaries?

Reply 9

StalkeR47

Original post by mathsRus

Your the best man! I was so worried about the exam but yeah now I am feeling better after comparing my answers to yours.

What do you think about grade boundaries?

Thank you for your positive comments! Grade boundaries in January 2013 were 64/75 (core 1), and 62/75 (core 2) for an A. For June 2013, the grade boundaries will definitely be lower compared to January 2013. So I will definitely get an A in maths overall! What do you think you got? :rolleyes:

Reply 10

DirectTuition

Ive made a quick video explaining the log question [video="youtube;2r0TCOthDPM"]https://www.youtube.com/watch?v=2r0TCOthDPM[/video]
Let me know if you find it useful

Original post by gamei

Hey guys,
can anyone remember the log question that was on this exam? it was worth 6 marks.

Thanks
Dan

ps. Hope all of you did well :smile:

Reply 11

mathsRus

Possibly 63-64/75 as I got the stupid limit question wrong so I lost method marks there and I got the scale factor question wrong. I wrote it was stretch by a scale factor 1/2. Also I thought that 180 was 2pi somehow that sector question so lost a mark there.