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please nov 07 no 3 ii
from part i .. 32 + 80u + 80u^2
u = x+x^2 ..
expand the above equations with these data.. and find the coefficent of x^2 by adding all the x^2 variables..
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please nov 07 no 3 ii
could u do the steps if u have time ?from part i .. 32 + 80u + 80u^2
u = x+x^2 ..
expand the above equations with these data.. and find the coefficent of x^2 by adding all the x^2 variables..
That doesn't work :|
K doesn't come as 8.5.
From your initial equation
(1)y^2-(4)y+(2k-13) = 0
a=1
b=4
c=2k-13
b^2-4ac=0
16-4(1)(2k-13)=0
16-8k+52=0
8k=68
k=8.5
anyone???http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w12_qp_12.pdf
4(i)
I'm not at my best today.
herein, i got themethod from the ms but not why.
4(x/k+k)-x^2anyone???
Thank you32 + 80u + 80u^2
u = x+x^2 ..
32+ 80(x+x^2) + 80(x+x^2)^2
32+80x+80x^2 + 80(x^2+2x^3+x^4)
32+80x+80x^2+80x^2+160x^3+80x^4
160x^2
160 coeffiecent.
take a direction vector and divide it by its modulusformula of unit vector? -.-
Welcome to the clubaround 60 or so .. but the 2012 ones were quite a disaster .. one of them went for 48
Welcome to the club
Mine is around 60 as well, but the recent papers ... well.
M1 is quite easy... But it accounts for very little percentageIf a paper like this 2012 comes.. then securing an A would be very very difficult. I also have S1 this year.. If i had M1 it would have been easier for me :\
M1 is quite easy... But it accounts for very little percentage
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