Maths Paper 32

[Dani]

math p3 was easy but i still hope dat the threshold will be low coz i messed up 61.
And Vectors was much easier than expected

 

[ka123]

Taninverse(0.5-e^-2k/2)

 

[a2man]

you mean e^2t right ?

 

[a2man]

and what abt tan 2a and 3a was the answer smething like -24/7

 

[yopi]

Worst Paper ever!!! does anyone know the part 2 of vector question? First was about calculating ax+y+z=3??
calculation on a. with two planes intersecting.
what was part 2 about? and any one remembered Differential equation question?

 

[ka123]

No it's -(e^(-2t))/2 coz integral of e^-2t is -(e^(-2t))/2

 

[ka123]

Tan2a was -24/7. I can't remember tan 3a.

 

[anamsohail]

differential equation q.
x=taninverse(-(e^-2t)/2) <<<<<<<<<<<corrected*

vectors
i) a=-4
ii) length of AB = 3

people please tell me...are these answers correct?

and what happens to x when t increases in differential eq. question?? does it approach infinity??

 

[anamsohail]

tan3a was -44/117 something like that...

 

[supermagic]

i think tan3a is -44/117 ?? not sure though....but i think it is.
and yeah when t become very large x=tan inverse(1/2)

 

[supermagic]

yeah i am very sure that length AB is 3
and if u get this correct u must get 9 marks!! ( include first part )
and i think the differential equation was x=tan inverse ((1/2)-(e^-2t)/2)... i cant remember but if t becomes large, then x=tan inverse(1/2)

 

[a2man]

Bingo @ Supermagic!!!! thats the differential , length is 3 and i think if you get it with , yeah u'll definitely get the total package..INSHALLAH

 

[supermagic]

yeah i looking forward to get full mark on dis paper
but i dunno whether i can get a mark from "explain why x increase as t increses??" in differentail question.

 

[omneya93]

this paper is a a disaster . the complex is extremely hard n i got a wrong distance for AB though they told me that i got their coordinates right

 

[ka123]

I was really hoping for an A* in mathematics :-(. All papers were really easy just made silly mistakes

 

[supermagic]

btw, what did u guys get the tangent equation where it says "show ur equation in ax+by+c=0"

 

[omneya93]

will there be an A* for the whole AL this year ?

 

[ka123]

I think it was 4X+ y+ 1

A* is only for AL not for AS

 

[gerrard]

yo

 

[supermagic]

yeah ur right k123 !!!!
muahahahaha full mark!!!