Spesh Exam

[BoredSatan]

yeah i seperated at the start but got a different answer to itute..

maybe i stuffed up my partial fraction.. i got A=B=1/6?

I got a=2/3 and b=-1/3?

I got the same as you

And me

if you times by -2 at the start i think you get that. but i split at the start and then only times -2 to the first integral.

i think both answers are the same anyway

[funkyducky]

It depends on whether you split it first then did partial fractions for just 1/(3-x)(3+x) or if you just did partial fractions straight away on (1+x)/(3-x)(3+x). The first way gets A=B=1/6, the second way gets A=2/3, B=-1/3

[mattshen]

omg so stupid, forgot to write the coordinates of the intersection DESPITE IT BEING IN BOLD...

[BoredSatan]

It depends on whether you split it first then did partial fractions for just 1/(3-x)(3+x) or if you just did partial fractions straight away on (1+x)/(3-x)(3+x). The first way gets A=B=1/6, the second way gets A=2/3, B=-1/3

ahhh i see.. no wonder i got different answers to my friends. i think they would accept both cause they are equivalent

[luken93]

The f***** up moment when you realise it had coordinates in bold, and you didn't even read it whatsoever.

[thushan]

Straightforward exam, veering on the too easy side.
Hopefully exam 2 is more challenging!

[BoredSatan]

Straightforward exam, veering on the too easy side.
Hopefully exam 2 is more challenging!

make it as easy pl0x

[ulbasour]

i reckon tomorrows exam will be the separator. Surely there can't be 2 easy exams in the one year. Finished that paper in 25 min, my teacher did it in 20 min. 

[Natters]

i reckon tomorrows exam will be the separator. Surely there can't be 2 easy exams in the one year. Finished that paper in 25 min, my teacher did it in 20 min.

it took me an hour

[luffy]

Straightforward exam, veering on the too easy side.
Hopefully exam 2 is more challenging!

Yeah - the exam was far too easy. It sucks because it means the more capable students, like Thushan, are unable to show their ability! Also, it means the most important factor that determines the A+ cut-off will be the number of silly mistakes. I would predict a 37.5-38.

i reckon tomorrows exam will be the separator. Surely there can't be 2 easy exams in the one year. Finished that paper in 25 min, my teacher did it in 20 min. 

Wow - 20 minutes. I finished in about 30 and practically did the entire exam thoroughly twice. Hopefully, I didn't lose a mark... sigh. Exam 2 better be extremely challenging I hope it has some interesting questions too...

[thushan]

Hmm, yeah I thought it was quite short, it took me about 15-20 mins and I was going quite slowly...

[jane1234]

Hmm, yeah I thought it was quite short, it took me about 15-20 mins and I was going quite slowly...

Yeah I took a bit longer because for some reason I thought that 4 - 4 + 5 = 1 for some reason on question 2 so I spent about 5 mins trying to figure it out...

Reckon you got 40 thushan?

[thushan]

hopefully!

[luffy]

Hmm, yeah I thought it was quite short, it took me about 15-20 mins and I was going quite slowly...

Yeah I took a bit longer because for some reason I thought that 4 - 4 + 5 = 1 for some reason on question 2 so I spent about 5 mins trying to figure it out...

Reckon you got 40 thushan?

What about you Jane? 40/40 too?

Yeah - it took me 30 minutes because I was trying to confirm my answer to the dy/dx of parametric equations by finding the cartesian equation as well. When I tried to confirm using this method, I made a mistake and hence spent 5 minutes just staring at it.

[jane1234]

Hmm, yeah I thought it was quite short, it took me about 15-20 mins and I was going quite slowly...

Yeah I took a bit longer because for some reason I thought that 4 - 4 + 5 = 1 for some reason on question 2 so I spent about 5 mins trying to figure it out...

Reckon you got 40 thushan?

What about you Jane? 40/40 too?

Like thushan, I'm hoping so... but I might have not shown enough working or something so I'm not counting on it. You?