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Edexcel C2 20th May 2015 Official Thread

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Reply 1680

username1333513

Original post by Hai_Ann

Somebody needs to help me with optimisation :frown:

that's the differentiation stuff right? I might be able to help

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Reply 1681

ImJared

Original post by Skygon

Besides sequences in c2, what else do we have to be able to prove the formula for?

Sum of a geometric sequence is the only proof you will need, and it has a high chance of coming up (as it hasn't for the past few years).

Reply 1682

Skygon

Alright if I'm done solving the solomon papers, is there anything else that could serve as better practice?

Reply 1683

username1333513

Original post by ImJared

Sum of a geometric sequence is the only proof you will need, and it has a high chance of coming up (as it hasn't for the past few years).

what was the last paper that a question like that came up on?

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Reply 1684

Anon_98

Guys can you help with a trapezium rule question please?

June 2014- question 1 a)

I'm really confused as to how I solve this.

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Reply 1685

Skygon

Original post by Anon_98

Guys can you help with a trapezium rule question please?

June 2014- question 1 a)

I'm really confused as to how I solve this.

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Put the values of x into the formula they mentioned, and get values of y for those values of x.

Reply 1686

Anon_98

Original post by Skygon

Put the values of x into the formula they mentioned, and get values of y for those values of x.

Ohhh- oh my gosh, thank you!!!!! :smile:

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Reply 1687

laylarose

I'm so screwed for this paper... I'm pretty sure I did badly in C1 so I really need a decent UMS in this :emo:

Reply 1688

Anon_98

Original post by Skygon

Put the values of x into the formula they mentioned, and get values of y for those values of x.

That was such an easy question lol, but I hope trapezium rule doesn't come up bc apparently I can't do it.

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Reply 1689

ImJared

Original post by bubblegumcat

what was the last paper that a question like that came up on?

Edexcel C2 January 2007 was the last paper, as far as I know. Better safe than sorry.

Reply 1690

Anon_98

Original post by laylarose

I'm so screwed for this paper... I'm pretty sure I did badly in C1 so I really need a decent UMS in this :emo:

Ahhh you'll be okay, Dont worry- hopefully it won't be too hard and you'll be able to get the UMS you need. :smile:

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Reply 1691

Skygon

Could anyone please help me with this question: Screen Shot 2015-05-20 at 3.50.53 AM.png

I would like to know where to start :s-smilie:

Reply 1692

Anon_98

Original post by Skygon

Could anyone please help me with this question: Screen Shot 2015-05-20 at 3.50.53 AM.png

I would like to know where to start :s-smilie:

Is this a real past paper or Solomon?

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Reply 1693

Skygon

Original post by Anon_98

Is this a real past paper or Solomon?

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Solomon..

Reply 1694

Anon_98

Original post by Skygon

Solomon..

Ahh...I'd help but I dont think I'd know where to start either...sorry. ;(

I feel like everyone's having an early night, hopefully it won't be long until someone can help. :smile:

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Reply 1695

Angelo12231

Original post by Skygon

Could anyone please help me with this question: Screen Shot 2015-05-20 at 3.50.53 AM.png

I would like to know where to start :s-smilie:

Really not worth your time...

Reply 1696

AdamRazaa

What topics are best to keep fresh in my mind for smaller non long winded questions?

Reply 1697

TAPTUT

Original post by laylarose

I'm so screwed for this paper... I'm pretty sure I did badly in C1 so I really need a decent UMS in this :emo:

Just try your best! I did the paper last year and the day before my exam i got a c in a solomon paper-in the actual thing i got 96 ums!
Just keep cool and skip if u don't get something so you don't waste time!

Reply 1698

domcandrews

Original post by Skygon

Could anyone please help me with this question: Screen Shot 2015-05-20 at 3.50.53 AM.png

I would like to know where to start :s-smilie:

If you join ABO you get an equliateral with π/3 as angle

Shaded area = half Of circle - 2 unshaded areas

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Reply 1699

dominicwild

Part d on this question confuses me. I've drawn a diagram, but can't get my head around how they got the angle ARQ. I drew a diagram from my understanding of the situation. Is there anything wrong with it?

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