Mathematics: Post your doubts here!

[shafayat]

http://www.xtremepapers.com/CIE/Cambridge IGCSE/0580 - Mathematics/0580_s09_qp_2.pdf (paper 21)

i have a doubt in question number 22 .. isnt is supposed to be that we have to find the LCM of the two fructions with the substracting sign? the final answer m getting is 1/cd .. but it is 2/c .. help pleasE !

did u get (d+c)/cd - (c-d)/cd ?


den (d+c-c+d) /cd ..
2d/cd

2/c

 

[shafayat]

can anyone plzz give more explanation... the exam is after 3 hours

which varient do u write ?

 

[kumiko]

Do i need to write any notation for the image after transformation? THX!

 

[NIM]

allrite man best o luck to yu may you prosper in these exams

thnx

 

[NIM]

Guys how was maths paper!!!!

 

[Lost_Life]

Guys how was maths paper!!!!

ALL MY TECHNIQUES are right except for my answers i think phys blew my mind

 

[Meg]

The paper was amazing!!
No transformations
nothing too hard
should get around 100 XD
not less for sure
what about you guys?

 

[Lost_Life]

The paper was amazing!!
No transformations
nothing too hard
should get around 100 XD
not less for sure
what about you guys?

-.-' nothin to ha... are you serious?

 

[Meg]

-.-' nothin to ha... are you serious?

Yeah? Why? How did it go for you? :O
Except the inequalities one part and indices which I messed up!
everything else was good
what about u?

 

[Mohsin41]

guys paper was just like core. Alhamdullilah done great. else we all should pray for A* . lol an easy paper can be sometimes hard.

 

[shefali]

the grade boundaries will be higher lets pray they arent

 

[beewhiz997]

what wasc the answer dor the time question ( speed of light one)

 

[Mohsin41]

154 days 10 hours

 

[ahmedali1]

154 days 10 hours

no it was 154 days 4 hours

 

[ahmedali1]

guys who wants to discuss answers in a private chat ???

 

[shefali]

yup 15 days 4 hours

 

[bluefa1con]

the paper was too easy
i had a stupid mistake at linear programming of 1 mark -_-

 

[Maz]

Its not the value in the brackets but to the power of value in the brackets, i think its always like that because i saw another question just like this and i got it right using this method!
But its not gonna make a difference now, I'm done with the paper and inverse didnt come!
How was your paper??

Overall?Not bad, I suppose. However, i made some stupid mistakes which i am really regretting now.

 

[Maz]

the paper was too easy
i had a stupid mistake at linear programming of 1 mark -_-

Which variant were you appearing for?

 

[Maz]

Same here... Everytime it turns out to be an easy paper, i make such stupid mistakes that I actually prefer hard papers!

when do they release the ms and er?