Section I - Multiple Choice (3 Viewers)

[Nws m8]

for 3 i just let z = 3 + 2i and it was looking for izbar so i did (3-2i)i which equals 3i + 2 so i put A

+1

 

[Raolan]

Re: General Thoughts: Mathematics Ext 2

fuck you! It is rotated anti clockwise not clockwise, so it shud be A Stooge

Yeah had a brain fail. I'm done with 4 unit, don't need this shit anymore.

 

[seanieg89]

HAHAHHAHA! FUck majority of ppl got 10 wrong

Yep, first and fourth have odd integrands and are zero, third one is negative.

 

[brianphamm]

1. D
2. D
3. A
4. A
5. C
6. B
7. A
8. B
9. C
10. B

 

[cartoonmaiz]

Okay, so 3 is A and 10 is B.

 

[Artemkin]

Re: General Thoughts: Mathematics Ext 2

wasn't Q10 B

i agree with B. C was also an even function, but it was below the x-axis so the integral would be negative...imo

 

[nucgaek]

Re: General Thoughts: Mathematics Ext 2

10 is B:
http://www.wolframalpha.com/input/?i=integrate+x^3+sin+x+between+x=-2+and+x=2

 

[Alkanes]

Re: General Thoughts: Mathematics Ext 2

10 is d:
http://www.wolframalpha.com/input/?i=integrate+e^-x^2+-1
http://www.wolframalpha.com/input/?i=integrate+inv+tan+x^3

That doesn't say shit LOL.

 

[cartoonmaiz]

Re: General Thoughts: Mathematics Ext 2

Yeah I thought that too.

 

[seanieg89]

Re: General Thoughts: Mathematics Ext 2

10 is d:
http://www.wolframalpha.com/input/?i=integrate+e^-x^2+-1
http://www.wolframalpha.com/input/?i=integrate+inv+tan+x^3

No. It is B.

 

[billym]

For 10, only B and C are even functions (meaning both A and D are 0). The graph of C is entirely below the x-axis (except for when x=0) meaning the integral will be negative. B is the correct answer.

 

[Skeptyks]

Re: General Thoughts: Mathematics Ext 2

No. It is B.

it's b because the negative side of the graph always remains positive when the two graphs x^3 and sinx multiply together right?

Also, anyone know what ~53% raw would align to :/?

 

[billym]

On that, multiple choice was much easier than I expected. Most trial papers that I looked at had MC questions much, much harder than anything that was in this paper.

 

[Nws m8]

On that, multiple choice was much easier than I expected. Most trial papers that I looked at had MC questions much, much harder than anything that was in this paper.

esp NSGHS 2012 Trial FARRRRKKKKKKKKKKK

 

[YoYoWayne]

Ddaac babcb

 

[7eleven]

Awwwwww shit
Just realised, 10 is actually C
Its an even function f(x)=f(-x)

 

[barbernator]

What is it then, and explain.
I actually chose B

FUCK dont even ask me im an idiot

 

[seanieg89]

No, 10 is b). I and several others have explained why earlier in this thread.

 

[7eleven]

No, 10 is b). I and several others have explained why earlier in this thread.

But why not C

 

[nightweaver066]

Your teacher isn't very good, it is B.

shit. Forgot odd * odd = even. fml