Mathematics: Post your doubts here!

[mushoo]

Again, I request someone to help me out with the last part-
Can someone PLEASE have a look at questin number 7 iii part, please, I realllu don't get it-
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s10_qp_43.pdf

i dont know whether its correct or not,
max friction will be 3150; force=fric (for the obj still not moving), [as we did in aprt i]
and in part ii, we have already taken out that the max possible a will be 2ms-2
so by applying newtns second law,
F-friction=ma
P-3150=450*2
P=4050N.

if its correct, the ans n the procedure, then lemme kno too :/

 

[iKhaled]

Ppaer 42 or 41? You said 42, but posted the link of 41?

sorry i mean 41 :$ in the link i posted..

 

[SUMMERLOV35]

sorry i mean 41 :$ in the link i posted..

i think what you dont get is why is it 0.8s well you have to double 0.4 as you find the time it becomes slack
and then the same time will be required to make it taut again

 

[iKhaled]

question 3 nov 05 pls someone explain :/

http://www.xtremepapers.com/papers/...AS Level/Mathematics (9709)/9709_w05_qp_4.pdf

 

[iKhaled]

Follow this diagram, and hope you will understand, then use the sine and the cosine rule to calculate the angles and magnitude

my question is why W1 and W2 has got such vectors like these? r they equal to their tensions in the string? :S

 

[Chooi1993]

Can anyone explain this to me ? Between I lost the question but this is my mock exam question .
They want us to find out the least arg which satisfied both.
Please !

 

[mushoo]

my question is why W1 and W2 has got such vectors like these? r they equal to their tensions in the string? :S

yeah they are equal to thr tensions,
you solve the question logically, using horizontal components of the tensions, the ans will be the same, cox its in equilbrm!
so the tension in the strings r equal to the weight in opp dir!

 

[2pac]

Hey can someone please help me with q2 of may 2003 paper 2.Its regarding polynomials and I only know the divisible method,although the question is asking for the coefficient method,which sadly I can't do.Would anyone please explain me the coefficient method or better just tell me how to do this using my preferred divisible method.
Thanks and please reply soon.

 

[bumble26]

http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_w11_qp_31.pdf

question 4. Please help me with the working.

 

[Most_UniQue]

How ws M1? The last question was hardest

 

[Echelon94]

http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w11_qp_31.pdf
question 4. Please help me with the working.

did it earlier man...
http://www.xtremepapers.com/communi...st-your-doubts-here.9599/page-130#post-230589

 

[leadingguy]

every one please post all your queries with the links of question papers and mark schemes.

it wil enable others to answer more clearly and fastly. thanx

 

[leadingguy]

the fever fr maths paper 3, now begin guys....
start posting and answering best of lUck

 

[leadingguy]

http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_qp_33.pdf
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_ms_33.pdf

question 8 part a how can we verify the roots ??? please show complete steps
same question part b, I have drawn but not sure abt it.. can any one draw it here fr me ????

 

[angelicsuccubus]

I can't even seem to remember what p3 is like.......... I need food and sleep.. I will see you people at night (MUST ace p3 after the m1 screwup)

 

[hm12]

http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_qp_33.pdf
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_ms_33.pdf

question 8 part a how can we verify the roots ??? please show complete steps
same question part b, I have drawn but not sure abt it.. can any one draw it here fr me ????

put the root value in place of x in the equation and solve if both sides are zero means 0=0 then the given root is correct

 

[aliya_zad]

http://www.xtremepapers.com/CIE/International%20A%20And%20AS%20Level/9709%20-%20Mathematics/9709_s08_qp_3.pdf
Can anyone please do the 5th one for me!!
please!!

 

[Aahliya]

Anyone who can solve Q4 (ii) ??
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_qp_32.pdf
Q4(ii) The iterative formula
x(n+1) = tan−1[x] + π
can be used to determine the x-coordinate of M. Use this formula to determine the x-coordinate
of M correct to 2 decimal places. Give the result of each iteration to 4 decimal places. [3]

 

[hassam]

after maghrib.,...inshallah will try to anser

 

[hassam]

http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_qp_33.pdf
http://www.xtremepapers.com/papers/...S Level/Mathematics (9709)/9709_s10_ms_33.pdf

question 8 part a how can we verify the roots ??? please show complete steps
same question part b, I have drawn but not sure abt it.. can any one draw it here fr me ????

instead of x substitute 1+sqrt(3)i.....and it shud equate to 0