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Edexcel Igcse FURTHER PURE MATHEMATICS 14th June 2016 exam official thread.

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Original post by htm48
What was the minimum speed?


I got 17/3
Does any one know the area of the integration question
Original post by igcsefro
Does any one know the area of the integration question


What question was that?
How did you guys integrate 8cos^3x + 6 sin x?

Did you substitute 6 cos x + 1 instead of 8cos^3x?
Reply 64
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a271999
3
did any of u lot manage to do the last question
part b of the last question specifically??
Reply 65
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a271999
3
no I mean the last one where u had to show something with the cone and stuff
Reply 66
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a271999
3
and ya I remember getting 343/6 for something
Original post by a271999
no I mean the last one where u had to show something with the cone and stuff


Yeah. It took me a while - I sat there puzzled for a bit. For a, you had to work out the volume of the cone and the radius of the cone using the angle. Then, you had to input the value of the radius into the volume equation. Finally, set that equal to 0.4t and solve for h^3.

For B, it was a classic rates of change question where you had to use da/dt = dh/dt * da/dh or something like that. Took me a while but you had to use the radius of the question.

For C, this was hopefully an easy two marks with you just working out h and inputting the value in.
Reply 68
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a271999
3
btw did u have to put the +c in for the intergration question
Original post by a271999
btw did u have to put the +c in for the intergration question


For one of them I did. But for ones working out areas under curves, there's no need to do so.
Reply 70
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a271999
3
that's about right thanks man
Yeah i got the same
In paper 1 what was the A.P question
What did you guys get for the distance AB?
Original post by Theonewiththegun
In paper 1 what was the A.P question


a = 5, d = 4, p = 12.
Original post by hamza.sheikh
What did you guys get for the distance AB?


if you are talking about the particles question, then 220/27. I know, lots of nasty fractions as answers this year.
Original post by Daniyal_Ahmed
How did you guys integrate 8cos^3x + 6 sin x?

Did you substitute 6 cos x + 1 instead of 8cos^3x?


Answer was two plus three root three.

Also I rmb the question was 8cos^3(x) + FOURsinx.

You sub the cos3x equation above in, giving cos3x + 6cosx + 4sinx

Then it's routine.
Do you guys think the grade boundaries will be lower this time around, in January they were incredibly high (84 for an A I think), would they drop it down to 72 like the 2013 papers, considering that these were harder exams?
I hope so


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Reply 79
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a271999
3
I got 4 and 4 for a and d and 12.25 for p

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