Further Mathematics: Post your doubts here!

[lilyanneth]

CIE 2008 may-june Q.11 (differential equation)
please help me solve both part of the question

Here you go!

 

[lilyanneth]

hi guys,
i've been working on momentum and impulse,but i'm getting some difficulty concerning coeff. of restitution on inclined planes.
here's an example:
A ball drops vertically onto a smooth plane inclined to the horizontal at an angle α. It hits the plane
with speed 8ms−1 and rebounds horizontally. The coefficient of restitution between the ball and the
plane is 1/3.
Find the value of α and the speed with which the ball rebounds.
(j06/1)
i would really appreciate it if anybody could help me out with this question.
thanks.

Here you go!

 

[anshul]

Here you go!

thanks a lot.

 

[anshul]

Hi guys,i'm getting some difficulty in roots of polynomial equations as i've just started this new chapter.
i'm stuck on this question.i would really appreciate some help.thanks.
The roots of the equation x^3 + x + 1 = 0 are α, β, γ . Show that the equation whose roots are
4α + 1/α + 1,
4β + 1/β + 1,
4γ + 1/γ + 1

is of the form
y^3 + py + q = 0,
where the numbers p and q are to be determined.
Hence find the value of

(4α + 1/α + 1)^n + (4β + 1/β + 1)^n + (4γ + 1/γ + 1)^n
for n = 2 and for n = 3.
(nov06/6)

 

[usman]

I need urgent help! Can some1 give me the names of the best books for Cie further maths! Do any1 know any online tutors for further maths?? I m dying here guys. I have NO teachers and NO books for Further maths here! Guys please help, its urgent!!! I have to bring books and need an online tutor immediately! :'(

Use the Edexcel LiveText books:

http://www.mediafire.com/?278tceeb27kn7

 

[lilyanneth]

Hi guys,i'm getting some difficulty in roots of polynomial equations as i've just started this new chapter.
i'm stuck on this question.i would really appreciate some help.thanks.
The roots of the equation x^3 + x + 1 = 0 are α, β, γ . Show that the equation whose roots are
4α + 1/α + 1,
4β + 1/β + 1,
4γ + 1/γ + 1

is of the form
y^3 + py + q = 0,
where the numbers p and q are to be determined.
Hence find the value of

(4α + 1/α + 1)^n + (4β + 1/β + 1)^n + (4γ + 1/γ + 1)^n
for n = 2 and for n = 3.
(nov06/6)

First step is to let y = the roots in terms of x for the new equation, then rearrange until you have x in terms of y. Sub the x into the old equation and voila! The second part just involves finding S.O.R., P.O.R. etc

 

[anshul]

First step is to let y = the roots in terms of x for the new equation, then rearrange until you have x in terms of y. Sub the x into the old equation and voila! The second part just involves finding S.O.R., P.O.R. etc

thanks again.
Really!! you're awesome.

 

[usman]

A facebook group for Further Maths, intended to remove your doubts and solve your problems. Check it out:-

http://www.facebook.com/groups/furthermathsprodigies/

 

[pakiboy]

can any one do Q10 oct/nov2012/13

 

[Sandhya Mahat]

Somebody plz help me with this:
1) Solve: 2^(2x-1) < 3^(3x-2)
2) Solve: (3* Mod(x)) / (x-1) < 2 , where Mod() means modulus or absolute value.

 

[shezi1995]

Q4. Last part which involves 'applying sum of squares to obtain result'. I'm unable to see how 2^2 + 4^2 + ....+ (n-1)^2 = the given result.

take 2^2 common and apply the sum of squares method.

 

[shezi1995]

can any one do Q10 oct/nov2012/13

taking derivative: 3x^2 + 3(y^2)y'=3y + 3xy' (1) (cut the 3s out)
>> x^2-y = (x-y^2)y' >> if y'=0 then x^2=y
using the original equation: x^3 + x^6=3x^3 >> x=2^(1/3) and y=2^(2/3)
taking derivative again of (1): 2x + 2y(y')^2 + (y^2)y'' = y' + y' + xy''
>> since y'=0 , 2x + (y^2)y''= xy'' >>y'' = 2x/(x-x^4) >> putting x=2^(1/3) gives us y''=-2 <0. Hence, the stationary point is maximum.

 

[cute97]

heey guys can someone help me with this http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s10_qp_43.pdf
the first question plzz and question 3 part 2
thanks in advance

 

[shezi1995]

heey guys can someone help me with this http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s10_qp_43.pdf
the first question plzz and question 3 part 2
thanks in advance

there is a separate thread for maths 9709 so please post it there. This is for further maths.

 

[Hertz]

Help plz solve this step by step, I can't integrate this, need help

 

[Executor]

AOA,
Please spare few minutes and go to this thread http://www.xtremepapers.com/community/threads/dua-for-all-candidates.14272/ and make dua for all those currently appearing in the exams. You will also find useful duas in it and Remember every share counts.

 

[Yeongson522]

Hey everyone, how to get A star for Further Mathematics? I m just mostly getting a B or seometimes an A in my school exams. Pls help if u can

 

[AhmedNES]

Guys i really need some notes for statistics paper 6 (S1)

 

[Lecom40]

Can someone please explain to me how you read of the amplitude from the given information. Thanks

 

[allysaleemally]

Hi, I am stuck with question 9 (iii) in Paper 33 O/N 2011. Its vectors. Could any PLEASEEEE HELP MEEEEEE?????????? THANKS A MILLLIONNNNNNN!

QP: http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w11_qp_33.pdf
Marksheet: http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w11_ms_33.pdf

Thanks again