How else can aqa confuse us in terms of inverse questions, like last years quadratic inverse question. Is there anything else they could throw in there that could confuse us at all?

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Reply 505

CD223

Original post by Jimmy20002012

I don't think they can do anything beyond what they did last year as it would be off the specification.

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Reply 506

Kriterz

Any tips for an A* in maths? How useful are the soloman papers?

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Reply 507

CD223

Original post by Kriterz

Any tips for an A* in maths? How useful are the soloman papers?

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Solomon papers are good. Try them if you run out of other papers.

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Reply 508

Jimmy20002012

Original post by CD223

I don't think they can do anything beyond what they did last year as it would be off the specification.

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Yeah I thought so, guessing the hardest they can throw at you is like a tough identity or a 9 mark Integration question. :smile:

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Reply 509

CD223

Original post by Jimmy20002012

Yeah I thought so, guessing the hardest they can throw at you is like a tough identity or a 9 mark Integration question. :smile:

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That would be incredibly harsh :wink:

Hope it's a fairly alright C3 paper. C4 I don't mind if it's too hard as boundaries will be low.

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Reply 510

Jimmy20002012

Original post by CD223

That would be incredibly harsh :wink:

Hope it's a fairly alright C3 paper. C4 I don't mind if it's too hard as boundaries will be low.

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By the way do you know if we need to know these standard integrals as it is my textbook but never seen it come up before. Thanks :smile:

ImageUploadedByStudent Room1432381688.350691.jpg

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Reply 511

CD223

Original post by Jimmy20002012

By the way do you know if we need to know these standard integrals as it is my textbook but never seen it come up before. Thanks :smile:

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No we don't. That was the old spec :smile:

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Reply 512

Kriterz

Original post by CD223

Solomon papers are good. Try them if you run out of other papers.

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Cool thanks I've run out of papers so I will definitely try them!

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Reply 513

Pumuki63

Original post by Jimmy20002012

How else can aqa confuse us in terms of inverse questions, like last years quadratic inverse question. Is there anything else they could throw in there that could confuse us at all?

Original post by CD223

I don't think they can do anything beyond what they did last year as it would be off the specification.

Could they test us on self-inverse functions? Do we need to know those for the exam?

Reply 514

Jimmy20002012

Original post by Pumuki63

Could they test us on self-inverse functions? Do we need to know those for the exam?

What is a self inverse fucntion? :s

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Reply 515

Pumuki63

Original post by Jimmy20002012

What is a self inverse fucntion? :s

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Say f(x) is (3x-5)/(x-3). If you do ff(x) you get the answer as x.
The input equals the output so the function is self-inverse.
It's in my textbook but I don't know if we have to know it?

Reply 516

username1854637

Did you guys find core 3 2014 quite difficult or easy? I am wondering if this year they would give us a paper with a similar difficulty level.

Reply 517

CAulet567

If anyone is looking for a challenge I recommend OCR June 2011 C3 paper. Think some OCR c3 is AQA C4 but nonetheless all good practice. That paper is a bitch 😋

Reply 518

CD223

Original post by Kriterz

Cool thanks I've run out of papers so I will definitely try them!

No worries. Let us know how you get on.

Original post by Pumuki63

Say f(x) is (3x-5)/(x-3). If you do ff(x) you get the answer as x.
The input equals the output so the function is self-inverse.
It's in my textbook but I don't know if we have to know it?

Sorry, I don't follow, are you saying that if you reflect that function in y=x it gives the exact same graph?

What are the features of this kind of function? How do you spot one?

Original post by geeky_penguin

Did you guys find core 3 2014 quite difficult or easy? I am wondering if this year they would give us a paper with a similar difficulty level.

Last year was the hardest C3 paper imo. I think they'll be of similar difficulty this year.

Original post by CAulet567

If anyone is looking for a challenge I recommend OCR June 2011 C3 paper. Think some OCR c3 is AQA C4 but nonetheless all good practice. That paper is a bitch 😋

Ah cheers - will look it up!

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Reply 519

Pumuki63

Original post by CD223

No worries. Let us know how you get on.

Sorry, I don't follow, are you saying that if you reflect that function in y=x it gives the exact same graph?

What are the features of this kind of function? How do you spot one?

Last year was the hardest C3 paper imo. I think they'll be of similar difficulty this year.

Ah cheers - will look it up!

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Yes I think so, it will be the same graph reflected. I don't know what the features for spotting it other than simply doing ff(x) and seeing if you end up with x.

It's a short section in the pure Core Maths 3&4 book by Heinemann.
It says "Suppose you take the reciprocal of 5. You get 1/5 = o.2. Taking the reciprocal of 0.2 gives 1/0.2 = 5. Doing the operation twice brings you back to the number you started with. This is an example of a self-inverse function operation"

I don't know whether we need to know this but no one seems to have done it so I think I'm just going to leave it?