Math Is Fun Forum
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#705 Re: Jai Ganesh's Puzzles » Doc, Doc! » 2008-07-07 05:43:51
Here are answers to some of the unanswered questions...
#706 Re: Puzzles and Games » Chess Puzzles » 2008-07-07 01:56:48
#27. Which two squares are considered to be the 'weakest' squares on a chess board initially (when the board is just setup)?
-difficulty level 3
#28. What is a 'Fianchetto' in chess?
-difficulty level 4
#707 Re: Help Me ! » Forum Member's rank.. » 2008-07-07 01:52:01
Nicely put Johnny!
But, is there a way to ask a question to a Mod or Admin directly (apart from making a post in of these sections)??
#708 Re: Help Me ! » Forum Member's rank.. » 2008-07-07 00:53:53
Thanks Mr. Franklin but i'm looking forward to a 'More Specific' reply please..
I searched for detailed information about 'Forums' on the net. In 'WikiPedia' they've just given a few words bout 'roles of a Moderator'.
But i think that the rules may vary from Forum to Forum!
I'm interested about 'This Particular Forum' please....
#709 Re: Puzzles and Games » Chess Puzzles » 2008-07-06 23:59:03
Hmmm...
I'd like some volunteer to suggest me on 'how long should i wait for a reply before posting the correct answer?'
#710 Re: Puzzles and Games » Chess Puzzles » 2008-07-06 10:12:23
#25. What exactly does 'CheckMate' mean? -Ranking 3
#26. What is a 'Steinitz Knight' in chess? -Ranking 5
#711 Re: Help Me ! » Subscribe Topic » 2008-07-06 09:39:49
It means that you'll get an e-mail notification as soon as someone makes a post in your topic!
Hope you've got it!
BTW, does anyone know how to 'unsubscribe' from a topic?:cool:
#712 Help Me ! » Forum Member's rank.. » 2008-07-06 09:27:05
- ZHero
- Replies: 7
What is the 'rank' sort of thing written below any user's/member's name (like guest, novice, full member, super member etc. etc.)?
How many 'ranks' are there in all?
What difference does it make??
How to get 'promoted'???
:
#713 Re: Jokes » More Jokes... » 2008-07-06 07:09:48
A beautiful lady goes to a doctor for some physical examination.
After an hour long of diagnosis...
Doc: "Well, you have acute anemia!"
Lady (shyly): "Thanks for the compliment doctor! And what is the disease??"
Please, do leave comments/post good jokes!!
Thanks!
#714 Re: Puzzles and Games » Square » 2008-07-06 01:48:08
Anyways, here's something!
and for N to be square, at least one of N, m, n should be 2!
And it can't be N!
What next?
#715 Re: Puzzles and Games » Square » 2008-07-06 01:44:32
use[ ][/ ] , don t use [/ ] [/ ]
oooh!
I edited the earlier post and ITS WORKING!
Thanks tony123!
And, i've seen that MOST of your questions are unanswered and they obviously are from Olympiads... Right?
Well, where from do you get these questions?
And if you know the solution to any of those, then do enlighten us too!
The questions are really really amazing and i must say "they add to the beauty of mathematics!!"
#716 Re: Puzzles and Games » Square » 2008-07-06 00:47:12
Heck!
Where am i going wrong??:o
#717 Re: Puzzles and Games » Square » 2008-07-06 00:45:54
Wow!
I always thought that maths was never easy!!
anyways, lemme check if i've got how to write the above..
#718 Re: Puzzles and Games » Square » 2008-07-06 00:24:42
The equation has only solution N=m=n=1 !
Consider..
(m^2+n^2)/(mn+1)
upon actual division, we get remainder equal to (n/m-m/n) which should be 0 (because its less than mn+1)for N to be an integer!
So, (n/m-m/n)=0
or, m=n
hence, N=2m^2/(m^2+1)
which on division gives the remainder as 2=/=0
therefore, for N to be integer, divisor must divide 2 which is possible only when m^2+1=2 or m=1 (all numbers are positive)!
Which gives N=1 which is of course a square!
any comments are welcome!
BTW, would anyone please be kind enough to take a little pain in teaching me how to write the codes for the above equations to make them look more tidy??
#719 Re: Help Me ! » Average » 2008-07-05 01:57:08
Cavg = (c1+c2+ ... +c5)/5
I think you need to know the money spent of each day to find and average
edit: maybe during weekends he lunches with his parent's ...lol
here..
c1+c2+.....+c7=$28.49 (total expenditure given)
So you just need to divide by 7!
#720 Re: Help Me ! » Average » 2008-07-05 01:51:13
Hi 'sweet lil gal'!
You're dividing '$28.29' whereas the man's spending '$28.49'!?
There are 7 days a week and of course the man must be having lunch everyday!!
So divide by 7!
$28.49/7 = $4.07
hope that does answer your question!
#721 Re: Jokes » Complex joke.. » 2008-07-04 21:48:47
Your clue, MathIsFun, was really good & relevant too but i didn't have the slightest idea that we've got to 'simplify' rt(-1/64)!
All i was thinking was something like "root over negative....' which obviously didn't make any sense to me!
#722 Re: Jokes » Complex joke.. » 2008-07-03 23:46:48
Aah! Got it! Got it!
Its 'i over 8 (ate)'!
Was REALLY NICE!
#723 Re: Jokes » More Jokes... » 2008-07-03 23:35:57
A mathematician claimed to have trained his dog the BASIC MATHS! The dog'd tell the answer by barking as many times and would lift the 'right leg for +ve' & 'left leg for a -ve' number!
A group of 'dog specialists' put the dog to a small test for verification of the claim..
1st spclst: "How much is 2*3?"
Dog (lifts his right leg): "bhow, bhow, bhow, bhow, bhow, bhow!"
The spclst is pleased.
2nd spclst: "How much do you get if you subtract 10 from 7?"
Dog (lifts his left leg): "bhow, bhow, bhow!"
2nd spclst is amazed too.
3rd spclst: "If x+y=2 & x-y=8 then what are the values of x & y respectively?"
The dog thinks for a while; lifts his right leg: "bhow, bhow, bhow, bhow, bhow!" Then switches the leg: "bhow, bhow, bhow!"
Third one is almost shocked at this!
The final spclst thinks to make it really tough for the dog: "How much is 2 divided by 0?"
Dog (after a considerable thought): "You IDIOT! Division by 0 is NOT DEFINED!!"
Don't know what happened of the dog, but the specialists surely would have all fainted!!
#724 Re: Jokes » More Jokes... » 2008-07-03 19:25:42
Once there's this Mathematician who falls in love with his beautiful neighbor Maria...
Mathematician: Maria, I Love You!
Maria: Oh! Nothing special about it. Everybody says so. Can YOU prove it?
Mathematician: Of course! Let x & y be two non zero positive integers........!
And the girl faints.....
#725 Re: Jokes » More Jokes... » 2008-07-03 13:27:32
Q: what did the mathematician call his dog?
A: CAUCHY! Because it left a RESIDUE at every POLE!!