Good Solution Hasib...and congratz for that one
Even some of the exam controllers got confused with this problem
Dhaka Higher Secondary 2011/3
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Please don't post problems (by starting a topic) in the "Higher Secondary: Solved" forum. This forum is only for showcasing the problems for the convenience of the users. You can post the problems in the main Divisional Math Olympiad forum. Later we shall move that topic with proper formatting, and post in the resource section.
Please don't post problems (by starting a topic) in the "Higher Secondary: Solved" forum. This forum is only for showcasing the problems for the convenience of the users. You can post the problems in the main Divisional Math Olympiad forum. Later we shall move that topic with proper formatting, and post in the resource section.
"Je le vois, mais je ne le crois pas!" - Georg Ferdinand Ludwig Philipp Cantor
Re: Dhaka Higher Secondary 2011/3
yahooo! But, most importantly i found the solution while i was in bathroom i am feeling proudAvik Roy wrote:Good Solution Hasib...and congratz for that one
Even some of the exam controllers got confused with this problem
A man is not finished when he's defeated, he's finished when he quits.
- Tahmid Hasan
- Posts:665
- Joined:Thu Dec 09, 2010 5:34 pm
- Location:Khulna,Bangladesh.
Re: Dhaka Higher Secondary 2011/3
now i can see that a genius is coming to the math era of Bangladesh from Khulna.
বড় ভালবাসি তোমায়,মা
Re: Dhaka Higher Secondary 2011/3
if the boy go, then also another boy will go; invesely if another boy go then the boy will go. Since u r my brain twin :loll:
A man is not finished when he's defeated, he's finished when he quits.
- leonardo shawon
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Re: Dhaka Higher Secondary 2011/3
whats the problem with my sollution bro...?:o
Ibtehaz Shawon
BRAC University.
long way to go .....
BRAC University.
long way to go .....
Re: Dhaka Higher Secondary 2011/3
You wrote $P(A)=\{\Phi, emptyset\}$leonardo shawon wrote:whats the problem with my sollution bro...?:o
Its wrong. Simply think, if $A=\{a\}$ what would be its power set? the $P(A)$ would be $\{\{a\},\Phi\}$ right?
Here $a$ is the only element of $A$. In our main problem $\Phi$ was also only element of $A$, so we should write
$P(A)=\{\{\Phi\}, \Phi\}$
btw, $\Phi$ and $emptyset$ means same thing. You need not to write both of them as element of a set.
Every logical solution to a problem has its own beauty.
(Important: Please make sure that you have read about the Rules, Posting Permissions and Forum Language)
(Important: Please make sure that you have read about the Rules, Posting Permissions and Forum Language)
- leonardo shawon
- Posts:169
- Joined:Sat Jan 01, 2011 4:59 pm
- Location:Dhaka
Re: Dhaka Higher Secondary 2011/3
thaaaaaaaankk yooouuu
Ibtehaz Shawon
BRAC University.
long way to go .....
BRAC University.
long way to go .....