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#251 Re: Dark Discussions at Cafe Infinity » Can You? » 2007-01-24 20:08:41
For some reason I always get a headache after riding, perhaps it has something to do with the wind hitting my head at high speeds 
#252 Help Me ! » Examples on Wiki » 2007-01-24 19:20:59
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- Replies: 1
I tested out the last few examples on this page:
Wikipedia Examples
against my calculator, and it came up with
for #1
and for #2:
Why is this?
And isn't the last equation that they have algebraically incorrect anyway, because it doesn't keep the negative sign?
#253 Help Me ! » Graphing Sum 'n Product » 2007-01-24 11:24:27
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- Replies: 4
Does anyone know how I might be able to graph a sum or product on a graphics calculator?
For instance, I type in
on my TI-89 but it won't appear at all.(Btw was there a calculator forum in the past? I can faintly remember there being one)
#254 Re: Guestbook » omgomgomg. » 2007-01-24 10:40:18
I know, let's talk about string theory!
#255 Re: Guestbook » Rawr » 2007-01-24 10:36:07
I thought donkeys and rabbits rawred 
(\ /)
(```)(@.@)(```)
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/ ___ \
(,,,) (,,,)
#256 Re: Guestbook » booo haloween over... since ages ago » 2007-01-24 10:19:14
For the past two years, nobody's come to trick or treat. Is it going out of fashion?
#257 Re: Guestbook » I love math » 2007-01-23 19:53:47
Perhaps they should stamp our world with a big fat copyright stamp. Basically everything is taken now.
#258 Re: Help Me ! » Some multi-choice questions... » 2007-01-23 05:55:35
Thanks mathsy and dross. Questions 1-2 make sense and I'll try gnawing through question 3.
Oh, and I hope you did well in your exam mathsy, next time if you've got an exam coming up you should attend to it first instead of worrying about my question. 
#259 Re: Help Me ! » Some multi-choice questions... » 2007-01-23 03:27:18
Hmmm, how did you come up with the conclusion that 8*3*5*7 will give the lowest multiple of 1 through 8?
#260 Re: Help Me ! » Some multi-choice questions... » 2007-01-22 21:28:09
Yeah, very clear, thanks Dross XD
#261 Help Me ! » Some multi-choice questions... » 2007-01-22 21:04:32
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- Replies: 11
A woman has three school age children. The product of her age and the ages of her three children is 16555. The difference between the ages of her eldest and youngest children is:
(A) 4 (B) 5 (C) 6 (D) 7 (E) 11
Not much of a clue... something to do with factors maybe 
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Consider all the numbers, bigger than 8, which when divided by 2, by 3, by 4, by 5, by 6, by 7 and by 8, each time give a remainder of 1. Find the sum of the two smallest such numbers.
(A) 842 (B) 2522 (C) 3362 (D) 912 (E) 2532
Not much of a clue...
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A cube is given. How many planes are there which pass through at least three of its vertices?
(A) 8 (B) 12 (C) 16 (D) 20 (E) 36
What is this question even asking???
#262 Re: Help Me ! » Product » 2007-01-22 20:06:18
Hmm, that's quite interesting
#263 Help Me ! » Product » 2007-01-22 18:28:20
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- Replies: 5
The value of the product
where the nth factor is
, is(A) 441 (B) 4041 (C) 4410 (D) 4001 (E) 4010
I found this question on one of those Math Competition papers. I don't think you are allowed to use a calculator, or it would probably be easy XD. So yeah... what's the fastest method, just multiplying everything one by one, or is there some scary (and possibly faster) product formula?
#264 Re: Dark Discussions at Cafe Infinity » GONG HAI FAT CHOI!(early of course) » 2007-01-22 18:17:58
Happy Chinese New Year!
Also, is that supposed to be a dialect or something, cuz i think it's supposed to go something like this:
Zhong Guo Xin Nian Hao!
Not sure though 
#265 Re: Puzzles and Games » ^_^ » 2007-01-21 22:36:42
It just depends on the question
#266 Help Me ! » Slope of a Normal? » 2007-01-21 04:01:22
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- Replies: 2
Find the slope of the normal to y= 2x²-2 at the point x=-4.
Uh... what's a normal?
#267 Re: This is Cool » 0.9999....(recurring) = 1? » 2007-01-21 02:40:01
Can we PLEASE close this thread now?
#268 Re: Dark Discussions at Cafe Infinity » World Cup Cricket 2007 Countdown...... » 2007-01-21 02:38:01
http://en.wikipedia.org/wiki/West_India
And I wanted them to win because I am from Trinidad and Tobago (although I was actually born here and grew up here).
I actually meant West Indies BTW, typed the wrong thing.
Um... just wondering, but how are you from Trinidad and Tobago if you were born and raised in England?
#269 Re: Puzzles and Games » ^_^ » 2007-01-21 02:36:13
Yes I am not a humman but a monkey! 
No I am not a humman but a monkey!
I do not understand what the point of this is
#270 Re: Puzzles and Games » Word puzzles » 2007-01-21 02:26:15
7. Which word contains the most pairs of consecutive letters?
#271 Re: Puzzles and Games » Word puzzles » 2007-01-20 23:11:20
Obviously.
Can you think of a word with two consecutive i's?
#272 Re: Help Me ! » without the calculater » 2007-01-20 07:53:48
I wikipedia-ed exact trigonometric constants and it said:
All values of sine, cosine, and tangent of angles with 3° increments are derivable using identities: Half-angle, Double-angle, Addition/subtraction and values for 0°, 30°, 36° and 45°. Note that 1° = π/180 radians.
As 25 degrees is not divisible by 3, I would presume that there is no exact value for it. Although I must say, I'm not an expert in this area.
#273 Re: This is Cool » Kids and Science » 2007-01-20 07:10:38
Is it actually possible to make a microscope that can see atoms???
#274 Re: Jai Ganesh's Puzzles » 10 second questions » 2007-01-19 23:24:39
79. 24
81. (5-2)*180/5 = 108
82. 501*250 = 125250 (sorry took longer than 10 seconds on this one )
83. I believe the formula is
#275 Re: Dark Discussions at Cafe Infinity » World Cup Cricket 2007 Countdown...... » 2007-01-19 23:14:08
Australia! xD