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# Edexcel A2 C3 Mathematics 12th June 2015 watch

1. (Original post by Gilo98)
June 2014 had slightly low boundaries. Papers have been fairly consistent otherwise. Maybe look at recent IAL papers.
I did that paper in my mocks i think, i had two mocks June 14 R and June 14 UK last year november..

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2. (Original post by physicsmaths)
I did that paper in my mocks i think, i had two mocks June 14 R and June 14 UK last year november..

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Tbh, grade boundaries who the rest are fairly straight forward. I would just do some Gold papers if I were you.
3. (Original post by suyoof123)

For this question, do you have to revert to dy/dx , cant we just keep it dx/dy and then sub y into the dx/dy to find the gradient?
No, dy/dx gives the gradient, not dx/dy
4. (Original post by physics_maths7)
why not just plot the graph and find the smallest/maximum value of y?
I've just done that and I think I get it now, thank you!
5. (Original post by anonwinner)
No, dy/dx gives the gradient, not dx/dy
Doesnt dx/dy not give the gradient even if you have the y value at that point?
6. How do you find the range for ---> x+1 / x-2 With a domain of x>3 ????
7. (Original post by Gilo98)
Simultaneous equations using the two points on f(X). remember a cannot equal 0 though...
Do you mind explaining june 2013 7b please?
8. (Original post by TeeEm)
year?
I just wrote it a few hours ago
Yeah but was this a question from the C3 past paper? I want to know what question so I can have a go.
9. (Original post by suyoof123)
Doesnt dx/dy not give the gradient even if you have the y value at that point?
10. (Original post by Gilo98)
Tbh, grade boundaries who the rest are fairly straight forward. I would just do some Gold papers if I were you.
Yh, I got full marks in both mocks with no papers so C3 isnt a peoblem tbh. Yh im gna do the golds, forgot about them things. Cheers

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11. Will anything from the IAL papers come up?
12. (Original post by rache11ouise)
g(x)=ln2(x)
g(x)+g(x^2)+g(x^3)=6
when x=x ---> g(x)=ln2(x) ---> expand the brackets ---> ln2x
when x=x^2 ---> g(x^2)=ln2(x^2) ---> expand the brackets ---> ln2x^2
when x=x^3 ---> g(x^3)=ln2(x^3) ---> expand the brackets ---> ln2x^3

ln2x + ln2x^2 + ln2x^3 = 6
ln((2x) x (2x^2) x (2x^3)) = 6
ln(8x^6) = 6
8x^6 = e^6
x^6 = (e^6)/8
x= the sixth root of e^6/8

made it as clear as i can, hope this helps
Thank you!!!! :-)
13. (Original post by nayilgervinho)
Will anything from the IAL papers come up?
I have noticed this year, M3 similar style to IAL, FP2 similar style to IAL not difficulty, physics today was also similar style to IAL.

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14. (Original post by frankiejayx)
How do you find the range for ---> x+1 / x-2 With a domain of x>3 ????
Basically the way I do these is by subbing in x=3, which gives (3+1)/(3-2) = 4/1 = 4, and then I sub in a really big number for example 500, which gives (500+1)/(500-2) = 1.006... From this you can see that as x tends towards infinity, f(x) tends towards 1. So the range is 1 < f(x) < 4
Do you mind explaining june 2013 7b please?
You have to consider similar triangles...
16. (Original post by anonwinner)
Thank you very much, was confused as the explanation before didnt make sense.
17. Best papers to do if you've done all the Edexcel ones (R's and IAL's) and Solomon A-L?

Looks like choice is between Elmwoods and Edexcel Bronze/Silver/Gold?
18. (Original post by physicsmaths)
Yh, I got full marks in both mocks with no papers so C3 isnt a peoblem tbh. Yh im gna do the golds, forgot about them things. Cheers

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Np, it seems the only Q that could really throw a full marks paper is a nasty trig Q which is probably a no go area after June 2013 despite the fact that the trig on the paper, imo, was not the hardest Q.
19. (Original post by JamieF95)
Best papers to do if you've done all the Edexcel ones (R's and IAL's) and Solomon A-L?

Looks like choice is between Elmwoods and Edexcel Bronze/Silver/Gold?
IGYB papers
20. (Original post by physicsmaths)
I have noticed this year, M3 similar style to IAL, FP2 similar style to IAL not difficulty, physics today was also similar style to IAL.

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I just wasn't going to look at them because it's one big amalgamation of c3 and c4.

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