Exam 1 - How did you all go?

[physics]

I really doubt the cut off mark will be 38. Personally I found it significantly harder than last years.

oh yay i feel better and i hope this is truee the approximation question really spserated people.

[angelboykevin]

For Q2a do you have to put the absolute signs in? as it asks for AN antiderivative. so wouldn't it still an anti derivative without the abs signs?

i think u have to put absolute signs in, let us say it still an antiderivative without the abs signs, then u have to write x<0.5

[btuned]

Is it okay if i left question 1b) as 2/(2pi+2) squared?  :S

[simpak]

Is it okay if i left question 1b) as 2/(2pi+2) squared?  :S

I did too!

[physics]

Can somone please explain to me how you would do question 5 b.?

balls numbered one to 4 and not replaced SO
Pr(4)= 1/4
Pr(1)= 1/3 (since one has been taken out)
1/3   *  1/4 =1/12

[saymun]

Can somone please explain to me how you would do question 5 b.?

Pr(sum=5) = Pr(2 then 3) + Pr(3 then 2) + Pr(1 then 4) + Pr(4 then 1)
              = 1/4 * 1/3 + 1/4*1/3 + 1/4*1/3 + 1/4*1/3
              = 1/12 + 1/12 + 1/12 + 1/12
              = 4/12 = 1/3

[physics]

Is it okay if i left question 1b) as 2/(2pi+2) squared?  :S

I did too!

me as well

[angelboykevin]

guys how did u explain for 10b)   i draw the graph of y=x^1/3, then explain when x>0 the gradient of the function will decrease as x value increase, and i reffer to the graph and explain why its greater, what did u guys do???

[Ilovemathsmeth]

The cut off was 37.5/40 for last year's exam, not 38/40. Has anyone uploaded a copy? I'm interested in seeing it! =) I heart Methods.

[TrueTears]

The cut off was 37.5/40 for last year's exam, not 38/40. Has anyone uploaded a copy? I'm interested in seeing it! =) I heart Methods.

http://vcenotes.com/forum/index.php/topic,19330.msg194953.html#msg194953

[nala]

TrueTears has a copy in his suggested solutions thread

Edit: Beat me to it

[btuned]

Oh yeah I changed -1/2 log_e( 1-2X ) into 1/2log_e(1/(1-2x)) cause I don't like negative.
That's fine too yeah??

[carolynkay]

What is the cut-off for an A?

[RexPP]

The cut off was 37.5/40 for last year's exam, not 38/40. Has anyone uploaded a copy? I'm interested in seeing it! =) I heart Methods.

Can you even get half marks? I thought they just said 37.5 so that people know 37 is less than the A+ cut off and 38 is more. If they said the A+ cut off was 38, people might be confused as to whether 38 is included.

[nala]

Nobody knows the cut offs until the exams are all assessed, but considering the standard was fairly similar to last year, you can probably assume it will be similar cut-offs. From memory this was about 33.5/40?