Cssa (1 Viewer)

[-Onlooker-]

Thats a shame ratcher0071*

The f(x^2) Graphing question was abysmal!

 

[Dumbledore]

Thats a shame ratcher0071*

The f(x^2) Graphing question was abysmal!

f(x^2) was ok... its quite similar to f(|x|) as u reflect the positive side to the left of x axis, the abcissa's of the main points are just square rooted aswell, well i think thats it, we weren't taught it :burn: so my classmates all had to think logically about it.

i wasn't sure how the y = ln[(f(x)] affected the asyptote though...

 

[-Onlooker-]

I ended up with sort of an upside down bell curve?

 

[Ppen]

What did ppl get for the volumes Q (4 marks)?
.. and how do u integrate x^2 / (e^x + 1)? i got the first 3 marks of the Q but i couldnt get the easy one marker

 

[bored of sc]

The paper was intense for me. Perhaps because I don't know the course well enough. Even the early questions threw me and set me up for a shocker of an exam.

 

[yibbon]

What did ppl get for the volumes Q (4 marks)?
.. and how do u integrate x^2 / (e^x + 1)? i got the first 3 marks of the Q but i couldnt get the easy one marker

Once you know I= J
I+J = 2I = the integral which has the 1+e^x cross out.
My answer was 1/3

 

[-Onlooker-]

What did ppl get for the volumes Q (4 marks)?
.. and how do u integrate x^2 / (e^x + 1)? i got the first 3 marks of the Q but i couldnt get the easy one marker

The 4 marker Volumes Q was BIG. Too big to remember.


Bored of sc, you found the paper hard ? I expected you to atleast get atleast 100/120. Was probably just a bad day for you then. Better luck next time.

 

[kwabon]

The 4 marker Volumes Q was BIG. Too big to remember.


Bored of sc, you found the paper hard ? I expected you to atleast get atleast 100/120. Was probably just a bad day for you then. Better luck next time.

fuck oath, i noe eh? i wasnt bothered figuring out what was the integral of sin(x)tan(x). i knew you had to use t substitution, then you had to use partial. annoying little question.

 

[redfield]

i wasnt bothered figuring out what was the integral of sin(x)tan(x). i knew you had to use t substitution, then you had to use partial. annoying little question.

I found it using by parts. i think it got down to the integral of sec x... but it was a kinda hectic way to do it i think.

 

[annabackwards]

I found it using by parts. i think it got down to the integral of sec x... but it was a kinda hectic way to do it i think.

For integrating sinxtanx = sin^2/cosx = (1-cos^2x)/cos^x = secx - cosx and you can just integrate that

 

[kwabon]

For integrating sexctanx = sin^2/cosx = (1-cos^2x)/cos^x = secx - cosx and you can just integrate that

OH
MY....
HAT!!!!

i did not see that. :burn:

 

[kaz1]

For integrating sexctanx = sin^2/cosx = (1-cos^2x)/cos^x = secx - cosx and you can just integrate that

lol isn't that on the integral sheet?

 

[annabackwards]

lol isn't that on the integral sheet?

Oops, my fault. It's meant to say sinxtanx. Previous post has been edited XD

 

[-Onlooker-]

I found it using by parts. i think it got down to the integral of sec x... but it was a kinda hectic way to do it i think.

Precisely; and as kwabon mentioned, the t method would give you the integral of sec x.

My answer for the 4 marker was something along the lines of [djjadsjfhsda
-fhs] + [ajshdkjashdkaj] + [jhjsahdkjashdfsa-hdk] + [ shkda-hdkl;\ashkl;\]

:blah:

 

[untouchablecuz]

just did the independent

i found it decent, i finished with 1 hour to go but i had skipped a conics Q and circle geo and some others small ones

all in all, i think it wasnt too challenging nor extremely easy

people who did independent, what marks are you expecting?

 

[yibbon]

Precisely; and as kwabon mentioned, the t method would give you the integral of sec x.

My answer for the 4 marker was something along the lines of [djjadsjfhsda
-fhs] + [ajshdkjashdkaj] + [jhjsahdkjashdfsa-hdk] + [ shkda-hdkl;\ashkl;\]

:blah:

Phew, I got a big mess as well! Something with In(root3 + 2), thats all I remember. And thanks for the solve on the z^5 question...I didn't think complex unity would even apply

 

[exiting]

Anyone sacrifice accuracy for speed? Or speed for accuracy? ie, not completing the test?

 

[Dumbledore]

accuracy > speed (for me)
i'm not sure if this counts as finishing or not, there was 1 question left (8mark circle geometry crap) and i had 30mins to do it, but i sat there and couldn't get a thing out of it

 

[shaon0]

just did the independent

i found it decent, i finished with 1 hour to go but i had skipped a conics Q and circle geo and some others small ones

all in all, i think it wasnt too challenging nor extremely easy

people who did independent, what marks are you expecting?

i found the conics hard and circle geo hard. But our paper was altered. I don't know what to expect? what about you?

 

[untouchablecuz]

i found the conics hard and circle geo hard. But our paper was altered. I don't know what to expect? what about you?

initially i skipped conics, but went back and did half of it (damn time limit)

skipped circle geo completely

but, i got all of the reduction Q, sine rule Q and half of the last Q

90+/120 maybe 97/120 if i'm lucky