Mathematics: Post your doubts here!

[CaptainDanger]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Extended or the other one?

 

[Smile27]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Assalamoalaikum.
i needed a bit help in paper 2.i tried it more then 3 times and left it, pls can any 1 help me out.its oct/nov 2004 . question no 19.

If you're talking about IGCSE Paper 2, I can help you out. It's a coincidence I was actually doing the same paper a while ago

(a)

We know that the distance around the inside of the inner lane is 400 m.
They gave us the radius of the two semi-circles.

Now, find the circumference of the semi-circles ...
That is, C = [2 * (3.142...) * 35] divide by 2 (because it's a semi-circle) and then times by 2 (because we have two semi-circles, one on both sides of the track).
However, from the above, you can realise that you can just use C = 2 * (3.142...) * 35 (since two semi-circles make one circle).

Once you find the circumference, subtract it from 400 (the total distance), to get the distance of the two straight lines!

(b)

What you have to do here is to find the [distance of the outside lane] minus [distance of the inner lane].
We know the distance around the inside of the inner lane is 400m.

Now, to get the outside lane.

Form two semi-circles on either side of the track.
Each lane is 1m. So, 35 + (6 * 1) (because there are 6 tracks) ... You get the radius of the semi-circle as 41 m.
Find the circumference.

The straight sections are of the length as in part (a).
Add that to the circumference you found above.

Now you have the distance of the outside lane.
Take that and subtract it from the distance of the inner lane (i.e. 400 m) And you should get your answer!

Hope that helps.

If you don't understand anything, don't hesitate in asking

 

[pprgeek]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Salam to all !!

Just a few for doubts i guess friends and i guess i'll be ready to go for 9th May !!
Pray for me please

Q10
Paper 2 :http://www.xtremepapers.me/CIE/Cambridge IGCSE/0581 - Mathematics Extended/0581_s10_qp_22.pdf

Have a gud day ! :Yahoo!:

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Waalaikumassalam!!


well thats simple
take x to LHS
Px = x +3

now bring the other x also to LHS

Px - x = 3
take x common

x(P-1) = 3
x = 3 / (P-1)

 

[student92]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

:http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0581%20-%20Mathematics%20Extended/0581_s10_qp_22.pdf
igcse maths 0580 paper 2 2010 mj
q11
how to solve part b

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

http://www.xtremepapers.me/CIE/Cambridg ... _qp_22.pdf
igcse maths 0580 paper 2 2010 mj
q11
how to solve part b

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Assalamoalaikum!!

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

OX = 6 - 4 = 2cm

 

[student92]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

wa alikum as alam
1thanks alot got it.

 

[cHeStEr]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Oct nov 11 question 2lz help I forgot how to do that and even 3 thanks already !

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Assalamoalaikum!!

Oct nov 11 question 2lz help I forgot how to do that and even 3 thanks already !

post the link to the paper u have doubt in!!

 

[Adorkableme]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

I am having trouble in Oct/Nov 2009 0580 P4
Question 10 (f) and (g).

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Assalamoalaikum!!

ppl plz when u post a doubt u post the link to the paper as well...cuz i dont have time to search for the papers and see the question to answer it!!
hope u understand...JazakAllah Khair!

 

[cHeStEr]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

It's o/n 10 paper 2 questions- 2,3,4,7 whole by the way !
http://www.xtremepapers.me/CIE/Cambridg ... _qp_22.pdf

And even 16b please

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Q:2 try drawing the Venn Diagram and solve!

Q:3 just did a similar question...see my previous post...
u take m as common--> m(v-u) and then i think ucan complete it!!??!?


Q:4 Property: Radius and tangents at apoint are perpendicular!! use thi sproperty to solve !!



Q:7 since AB = CD
equate both the eqns and solve...finally u'll reach to this... t = 3t - 5 solve it

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

and what's difficult in Q:16 b :no:

are u giving the exam in this session??

anyways u got to apply laws of indices there solve the numerical part separately and then for powers of y....using laws of indices--> when same bases multiplied power gets added...and when divided gets subtracted

so power of y will be 10 + (-4) - 7 = -1
so final answer is 2y^(-1)

 

[cHeStEr]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Ohk thanks !! Yeah I am appearing for mj only .. I know s crewed up ! No worries I'll do it .. Any suggestions for the CIEs ?
Thanks again !

 

[XPFMember]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

yeah...never leave anything blank...and when u start doing the paper...atleast this is what i feel that dont look wha questions came...bcoz if u see smthng u dont know...u become tensed and wont be able to do other questions properly...when u r stuck at sum question dont waste time on that!...markthat and cum back to it later...try to write the best possible answer u think....DONT EVERLEAVE IT BLANK...the worst u can do is write sum nonsense there...may which cud be vague but sumehat related to the question

may be that may lead u upto a little mark atleast

 

[cHeStEr]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

Ohk ! Thanks A lot ! Ill do it !
Ill come with those doubts again !
Thanks anyways !

 

[WayneRooney10]

Re: Maths made easy =) stuck sumwhere?Ask ur doubts here!!

http://www.xtremepapers.me/CIE/Cambridg ... _qp_02.pdf

Help in question 2!!


I saw the mark scheme...just explain how you get the answer. Thanks