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Author Topic: HELP igcse Math Jun. 06 ppr 2  (Read 2987 times)

Offline moon

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HELP igcse Math Jun. 06 ppr 2
« on: October 26, 2009, 08:15:49 am »
Plz help to solve Q no.17(b) Jun. 09 I know the answer from mark scheme but I don't know why. thanks
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Offline @d!_†oX!©

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #1 on: October 26, 2009, 08:21:01 am »
adi but he said june 09
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Offline astarmathsandphysics

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #2 on: October 26, 2009, 08:22:43 am »
june 06 or june 09?
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Offline Ghost Of Highbury

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #3 on: October 26, 2009, 08:22:59 am »
oh..hell sry..i have gone dyslexic...reading 9 as 6

will post it soon
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Offline Ghost Of Highbury

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #4 on: October 26, 2009, 08:28:05 am »
find the image attached

actually, u can do it without using all those lines and protractor...its just 900

but for ur understanding...i drew the lines too..

hope u understand
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Offline adorabledaughter_07

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #5 on: October 26, 2009, 08:32:09 am »
yea...jus join all de pointz to (4,4), measure 90degrees, measur de distance, nd plot de points ...don! :)
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Offline moon

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #6 on: October 26, 2009, 08:32:32 am »
Sorry, I meant Jun. 06 Q no. 17 (b)
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Offline Ghost Of Highbury

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #7 on: October 26, 2009, 08:33:51 am »
june 2009...i solved it in ur other post..
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Offline ~~~~shreyapril~~~~

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #8 on: October 26, 2009, 08:35:42 am »
hey moon u want a or b or both??
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Offline Ghost Of Highbury

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #9 on: October 26, 2009, 08:38:46 am »
n(AUB)= n(A) + n(B) - n(AnB)

here n(AUB) = 29

n(A) = 18

n(B) = 11

therefore n(AnB) = 0

so they both are distinc sets

no intersection

refer to the markscheme for the diagram
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Offline moon

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #10 on: October 26, 2009, 08:39:24 am »
Thanks a lot I got it. :)
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Offline ~~~~shreyapril~~~~

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #11 on: October 26, 2009, 08:40:20 am »
ans for a is in the image below:

as they have told (A U B)' = 0 so the one in box will be 0

as they have told B is completley belonging to A that is A is the universal set for B and n(B) = 11 and n(A) = 18

so n(B)' = 18-11
           =  7

hope you get this!!!  ::) ::)
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Offline ~~~~shreyapril~~~~

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #12 on: October 26, 2009, 08:41:41 am »
good one aadi
i was also going to answer it but then i saw u doing it!!

so i did a instead of b
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Offline @d!_†oX!©

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #13 on: October 26, 2009, 08:49:48 am »
Quote from: | am | on October 26, 2009, 08:28:05 am
find the image attached

actually, u can do it without using all those lines and protractor...its just 900

but for ur understanding...i drew the lines too..

hope u understand
dude what software do u use to make these graphs>>>>
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Offline ~~~~shreyapril~~~~

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Re: HELP igcse Math Jun. 06 ppr 2
« Reply #14 on: October 26, 2009, 08:51:10 am »
which graphs???
th one he used for 09 paper????
i guess he told me abt using some ms math or something like taht
it is a free software i guess!!
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