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# AQA A2 Mathematics MPC3 Core 3 - Wednesday 15th June 2016 [Official Thread] Watch

1. How do you find max rate of growth when you have dy/dx?

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2. (Original post by Yo12345)
How do you find max rate of growth when you have dy/dx?

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https://www.youtube.com/watch?v=ENow3pHtocs
3. Is there a list of shapes on the syllabus that you could be asked to make out of vectors, cause I know 7 and 3 of them are squares. -#prayforsquares
4. (Original post by Yo12345)
How do you find max rate of growth when you have dy/dx?

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Differentiate it again. Make it equal to zero and rearrange.
5. I'm so scared for this exam. I was feeling fairly confident (and very confident for core 3...) but after how that exam turned out I'm just dreading what sorts of questions could come up...
6. (Original post by callumbwg)
Is there a list of shapes on the syllabus that you could be asked to make out of vectors, cause I know 7 and 3 of them are squares. -#prayforsquares
None on the syllabus exactly because we should know it from GCSE. I would recommend looking at (areas + general facts)

Rhombi
Kite
Parallelogram
Trapeziums

and the good ol' squares and triangles
7. c'mon guys its getting to 10,000 supporters now
https://www.change.org/p/aqa-lower-g...edium=copylink
8. (Original post by bartbarrow)
None on the syllabus exactly because we should know it from GCSE. I would recommend looking at (areas + general facts)

Rhombi
Kite
Parallelogram
Trapeziums

and the good ol' squares and triangles
What is the difference between a rhombus and a parallelogram may I ask?
9. (Original post by Mowerharvey)
What is the difference between a rhombus and a parallelogram may I ask?
parallelogram has 2 pairs of parallel sides
rhombus doesn't. Rhombus also has 2 pairs of angles which are equal to each other and opposite each other i think
also parallelogram parallel sides are of equal length, and i think all the sides of a rhomubs are equal length
10. (Original post by bartbarrow)
None on the syllabus exactly because we should know it from GCSE. I would recommend looking at (areas + general facts)

Rhombi
Kite
Parallelogram
Trapeziums

and the good ol' squares and triangles
Too late too learn all that now .... Them shapes have sailed
11. (Original post by callumbwg)
Too late too learn all that now .... Them shapes have sailed
If a shape ABCD has an angle that isn't 90 degrees and all the vectors (AB, BC, CD, DA) are the same length then it's a rhombus. 90 degrees its a square. All I know.
12. (Original post by mickel_w)
parallelogram has 2 pairs of parallel sides
rhombus doesn't. Rhombus also has 2 pairs of angles which are equal to each other and opposite each other i think
also parallelogram parallel sides are of equal length, and i think all the sides of a rhomubs are equal length
A rhombus is a parallelogram. But a parallelogram is not necessarily a rhombus.
13. (Original post by Ano123)
A rhombus is a parallelogram. But a parallelogram is not necessarily a rhombus.
bit like all transition metals are d block elements but not all d block elements are transition metals. God I hate transition metals
14. (Original post by vilifyme)
bit like all transition metals are d block elements but not all d block elements are transition metals. God I hate transition metals
Exactly. Also like how all squares are rectangles, but not all rectangles are squares.
15. (Original post by jlrose1)
Could you explain the concept of a 10% quartile please? I am a parent, not a maths student, so I don't understand that.
errr, there is no such thing. A quartile is a 25% chunk. 10% is 10%. nobody knows what he means.
16. Good luck to everyone on the core 4. I think a lot of us are going to need it!
17. (Original post by Pablo Picasso)
It's mathematical ingenuity.
I really do think you should spend some time learing how to ma friends and influence people
18. (Original post by vilifyme)
Good luck to everyone on the core 4. I think a lot of us are going to need it!
praying it's an easier paper
19. (Original post by Jackmclean)
I really do think you should spend some time learing how to ma friends and influence people
I guess the argument that a lot of people think they deserve a A or A* because they spend a few weeks memorising mark schemes from past papers is sort of a valid one - although he was just being a massive douche about it.

(Original post by Arima)
praying it's an easier paper
With the mood AQA are in this year I doubt it. Wouldn't be surprised with an out of spec vector question.
20. Can anyone tell me how to do June 2015 6c?

Also, in vector equations when you have to square the vector, why do we usually have to do that in a typical question? Whats the purpose of that?

Thank you

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