Post your AS-Level Mathematics (P1 and M1) doubts here.

[SitiPutri]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w12_qp_13.pdf11 (iv) plzzzzzzz sm1 explain this .. its vurgent!!

Minimum value of the gradient: you differentiate the gradient to find the minimum value. Equate that to zero

 

[Wolfgangs]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_w09_qp_11.pdf

How to solve 10 ii

 

[David Hussey]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w09_qp_11.pdf

How to solve 10 ii

f(x)=2X+1
write f(x) as y
y=2x+1
make x the subject
(y-1)/2 = X
now write y as x and, x as f^-1(X)

do same method for g(x)

 

[David Hussey]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w09_qp_11.pdf

How to solve 10 ii

ic g is tricky
it goes like this
y(X+3)=2X-1
yX+3Y=2X-1
3y+1=2x-yX
3y+1=X(2-y)
therefore
x=(3y+1)/(2+Y)

 

[Wolfgangs]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s13_qp_12.pdf

Is there a particular concept for the point of reflection? Q7.

 

[hellblender]

Yeah if it's a small domain but in the question he asked, the domain was x - all real numbers, so it's impossible to subsitute every real number. Have to prove it' >0 in another way in that case.

but bro cant v just subtittue the DOMAIN value ,and thus prove it???????

 

[BeBeskii108]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s12_qp_42.pdf
Can somebody please explain the q3ii. I got the integration right. Just don't know how to get the last accuracy mark.

 

[Oishee Asif]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s12_qp_42.pdf
Can somebody please explain the q3ii. I got the integration right. Just don't know how to get the last accuracy mark.

Okay, so you get the integration, right?
From part I), t^(5/3) = 5/6
Therefore:
To find t...
We cube. Then we find the root of it to the power of 5. In other words...
=> t^5 = (5/6)^3
=> t = ((5/6)^3)^(1/5)
=> t = 0.896
=> Substitute in 0.45t^(8/3) + 2t
=> s = 2.12889...
=> s = 2.13m.

 

[Mohammad Farzanullah]

What was the position vector of D in the question involving vectors?

 

[Mstudies]

Any doubts about m1 or p1, happy to help.

 

[Oishee Asif]

Any doubts about m1 or p1, happy to help.

M1.
Formulae for different energy situations. I still don't get when to use net work done = increase in KE...
Like for all the different possibility :S
Can you please write these up?

 

[Tulaib]

Can someone make me a full diagram with all the forces??

 

[AnujaK]

Hi everyone
I've started a site which will provide you with solved papers showing every single step in the working (unlike the very brief marking schemes) and with helpful tips on the side. Please do check it out!
https://sites.google.com/site/fromatoscom/home

 

[Oishee Asif]

Hi everyone
I've started a site which will provide you with solved papers showing every single step in the working (unlike the very brief marking schemes) and with helpful tips on the side. Please do check it out!
https://sites.google.com/site/fromatoscom/home

No A2 papers :'(

 

[Thought blocker]

can you upload some p42 of maths??

It will be uploaded soon by Suchal Riaz By tomorrow.

 

[AnujaK]

Nope, Sorry I'm still an AS student :/ I'll try getting some papers from my friends though

No A2 papers :'(

 

[Suchal Riaz]

Thought blocker here is your summer 2002 paper 3
click here to start download

 

[Thought blocker]

Thought blocker here is your summer 2003 paper 3
click here to start download

I solved 2002 :/

 

[Suchal Riaz]

I solved 2002 :/

ooops. i meant 2002

 

[Thought blocker]

ooops. i meant 2002

Great, now I got my confusion cleared. Lets do 2003 now ? And tomorrow, 2011,12,13.. Dont say no