Edexcel FP2 June 2015 - Official Thread Watch

MentalMath
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#241
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#241
You should have shaded outside of circle not inside, it was only inside for Z. When transformed by T becomes outside of circle
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mrno1324
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#242
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#242
(Original post by MentalMath)
You should have shaded outside of circle not inside, it was only inside for Z. When transformed by T becomes outside of circle
Don't think so mate
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jelo
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#243
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#243
(Original post by AsianStandard)
yes the integral was sinx, where pretty much a lot of my friends and other people said they got stuck in integrating cos2xsinx, you would use the cos2x expansion integrating after should get you

y= cot (x) - (2/3) cos^2(x) cot (x) + Ccosec(x)
and with coefficient 3
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StarvingAutist
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#244
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#244
(Original post by MentalMath)
You should have shaded outside of circle not inside, it was only inside for Z. When transformed by T becomes outside of circle
nope, see my working (I've posted it in this thread or the other one, idk)
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MentalMath
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#245
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#245
(Original post by StarvingAutist)
nope, see my working (I've posted it in this thread or the other one, idk)
I did a past paper with a similar question and it was inside then became outside after transformation
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StarvingAutist
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#246
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#246
(Original post by MentalMath)
I did a past paper with a similar question and it was inside then became outside after transformation
Yes, but you can't just assume that because it was so in past papers it is so in this one. I didn't assume anything; I worked it out.
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MentalMath
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#247
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#247
(Original post by StarvingAutist)
Yes, but you can't just assume that because it was so in past papers it is so in this one. I didn't assume anything; I worked it out.
Yh, really well done
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MentalMath
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#248
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#248
(Original post by StarvingAutist)
Yes, but you can't just assume that because it was so in past papers it is so in this one. I didn't assume anything; I worked it out.
Will I lose just 1 mark if my circle is drawn in the right place
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StarvingAutist
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#249
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#249
(Original post by MentalMath)
Will I lose just 1 mark if my circle is drawn in the right place
Yeah probably.
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MentalMath
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#250
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#250
(Original post by StarvingAutist)
Yeah probably.
Well done tho your amazing
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StarvingAutist
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#251
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#251
(Original post by MentalMath)
Well done tho your amazing
lol
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MentalMath
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#252
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#252
(Original post by StarvingAutist)
lol
Do you think you got fully marks
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crashMATHS
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#253
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#253
cos2xsinx = sin3x - sin x

And then I integrated that. Is that fine?
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StarvingAutist
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#254
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#254
(Original post by MentalMath)
Do you think you got fully marks
I hope so! What do you think you got?
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MrBowcat
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#255
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#255
What do we think the grade boundaries will be roughly. I messed up so many easy questions worked out I got around 60/75
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MentalMath
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#256
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#256
(Original post by StarvingAutist)
I hope so! What do you think you got?
Now that you exposed my mistake I think I got 74
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StarvingAutist
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#257
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#257
(Original post by MentalMath)
Now that you exposed my mistake I think I got 74
Tragedy
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TeeEm
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#258
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#258
please cast a vote in
http://www.thestudentroom.co.uk/show....php?t=3376607
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DoctorDren
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#259
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#259
(Original post by StarvingAutist)
I got inside.



Is anything there wrong?
Just realised but oh well I only lost like 1 mark
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TeeEm
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#260
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#260
(Original post by MrBowcat)
What do we think the grade boundaries will be roughly. I messed up so many easy questions worked out I got around 60/75
I got a feeling that the boundaries will be very high ...
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