August 9, 2009

More Maths.

(Please, try and solve the questions if you want)

The first thing I would like to rant about is this question.


Actually, I tried to do this question again later that day. I mean, this question had negative exponential, not to mention an irreducible denominator. Of course, as leaving the question blank during the exam, I HAD to try this at home in my own sweet time.

I proceeded to write down the question first.

Then stare at it blankly for a few moments.

After which, I lifted the marker and tried to see how far it leads too. After 10 minutes of agonizing, I got this.

What an idea! Bring the negative number down of course, for 1/e is actually e^-1. So it will end up like the above. So... Then what?

Ok...maybe this is not the way. A dead end has been approached. Erased it.

No wait!

How about:

Ok fine that is SO wrong. You cannot cancel exponentials like that. I know you had to do some substituting, but it looks from here it can't! The "u" is supposed to cancel out the "x", which doesn't here.

After 40 minutes, I quit. To solve for another day.
_____________________________________________________________________________________

"This is retarded" I thought to myself when Ms. Lee (Adv. Maths lec.) gave the answer.

The secret was to change 1+e^(-x)=u by bring over the 1 so that you get u-1=e^(-x)

WHAT THE HELL.

Then of course, you proceed to substitute accordingly. Working is below.


Another question for you to try.

Not many got this correct.
Try and list your working :)


This question is easy (Well, after the exam it was). Just use long division.

This one is a mad one. "Manipulate the question to your liking" Its like how in the world am I supposed to think so far ahead with this question? I dont think 4-x looks like 2x+10 seriously. I would need to multiply by 2 and +18 to the equation. what is this. MANIPULATION.


And finally this one. I was surprised when I got it right lol. Cause this does look more complicated then most of the above questions.


August 7, 2009

Graphs.

Theory of Beauty vs Intelligence

Can die one. (THIS IS NOT TRUE AND IS A JOKE)

y=1/x

Of course, the above is unacceptable. As Edward Gan puts it:

y=sin x +2



But finally:
In other news, I still have a cough/sore throat. Physics B test on the 12th. I'm actually terrified for that. No really.

August 4, 2009

A mathematical rant.

Sick for a week wohoo! Blood test says it's not dengue.

Main point here today is that, I think I have failed my first advance maths test for this semester.

Here's a challenge for you. Integrate this:

4e^(-2x)/(1+e^x)

If you do not understand, click on the link BUT DONT SCROLL DOWN.

http://www24.wolframalpha.com/input/?i=4e^(-2x)%2F(1%2Be^x)

If you get this by yourself.

You

Are

Awesome.


July 30, 2009

Heads will not roll

Mechanic pencil has been found. Yi-Zheng is to be blamed.

Indonesians are loud and crazy. They are only 15 like omg so young, makes me feel old. Their language is very connected too.

July 29, 2009

Skipped An Experiment For A Reason

Sick today. Won't be funny this week.

And my mechanical pencil is still M.I.A. Boo.

July 26, 2009

Sentimental Value.

This is going to be a post about a pen.


HAVE YOU SEEN THIS PEN!?


Please check your pencil box. If you have it, return to me please :)

July 24, 2009

Good things are always timeless.

This includes Starcraft of course.

July 22, 2009

English Assessment: Cultural Identity. :)

Thanks dear.

July 11, 2009

Sunway College: Part 2 (2009)

Overview

User rating: (*)(*)(*)(*)(*)(*)(*)(*)(g)(g)

Director: Kevin Lim

Writers: Dad
Mum

Plot: The holidays are over, and Kevin Lim returns to Sunway College for his second semester. What new adventures await him? | Full synopsis >

Cast:

Kevin Lim
Edward Gan
Wong Kok Lim
Tham Yu Ming
RIchard Teo
Yip Xuan Lin
Tan Soon Sien
Muhammad Khairin
Kelvin Low
Yi Zheng
Wei Siang
Wong Siaw Wei
Amelia Choe
Sufiz
Soorah Hassan

More >

Additional Details

MOVIEmeter (?) : Up 200% this week
Contact: 01x-36xx5x0
Release Date: 20/11/2009 (MAL)
Genre: Action | Romance | Drama | Horror more>
Plot Keywords (Spoiler alert! Highlight below to view plot keywords! Spoiler al) more>

Kevin Lim | Sunway College | Medan/Rock | MUFY | Orange | 2009 | Betrayal | Injustice | All guys no girls in adv. Maths classes

User Comments: He keeps disrupting the classes
Rating: Rated
R18+ for coarse language, sexual reference, pranks, stunts and insanity
Parents Guide: Should not be around
Runtime: 5 months
Country: Malaysia
Language: English, Mandarin, Cantonese, Malay
Colour: Colour
Aspect Ratio: True life
Sound Mix: True life
Certification: 10A 1B in SPM
Locations: Sunway, Subang Jaya, Damansara, SS2, Seksyen 14 more>
Company: Kem Seri Perkasa Mantin, Mantin, Negeri Sembilan. Alpha Company, 2nd platoon 3rd squad.

Fun Stuff

Trivia: This is the 11th year that Amelia Choe and Kevin Lim have been in the same learning facility. They both were in Methodist Primary School (1997-2003) , Sekolah Sri KDU (2005-2008) and Sunway College (2009) more>

Goofs: Most of the restaurants outside of Sunway College do not have names. They are referred according to the buildings colour. (i.e: White, Orange and Pink) more>

Quotes

Nigel Kheu: “Serious shit!”(Said when he does not believe in a statement)
Kevin Lim:
“You watch out.”(Said when the other person does not believe in him)
Soorah Hassan:
“Oh my god...”(Said when a story is told)
Tham Yu Ming:
“This classroom has no girls lah!.”(Said everytime he feels like changing a classroom)
Phoon Chi Kit: more> (Too many quotes, for full list, please visit Wikipedia)

Movie Connections: Sunway College: Part 1 (2009)

Soundtrack: Fly fm, Hitz fm, Mix fm

July 6, 2009

The Receiving End Of An Ace.

1. Wimbledon season is almost over, I can't believe on the number of people who have never heard of this before.

2. Went to bake a Di-Anne's house the other day. Now I will never realize my potential of baking as I am banned from the kitchen.

3. Went to the 5D gathering, yay everyone is back! Lol at least for 2 months lah. Good to see everyone.

4. Mamak with NS friends on sat, haha thank for the compliments! ;D