i hav taught some kids in our math club,so can i post here?
but look i have already posted here
what a paradox
Search found 665 matches
- Sun Jan 16, 2011 6:11 pm
- Forum: Teachers' and Parents' Forum
- Topic: can i post here?
- Replies: 6
- Views: 12812
- Sun Jan 16, 2011 5:55 pm
- Forum: Social Lounge
- Topic: i'm banned
- Replies: 9
- Views: 6010
i'm banned
:cry: i have 3 q; 1.does posting div probs after dhaka div ban me? 2.does posting bdmo 2011 probs after xm ban me? 3.does posting this topic ban me? deduction:if i can't post from tomorrow,then i'm banned.moon bhai will block this topic. this deduction may a part or hint of a bdmo prob for which i a...
- Tue Jan 11, 2011 11:17 pm
- Forum: Combinatorics
- Topic: Dont copy in exams
- Replies: 4
- Views: 4013
Re: Dont copy in exams
consider both two scenarios.(if u undrstand this that means u have cruxed it )
- Tue Jan 11, 2011 10:51 pm
- Forum: Combinatorics
- Topic: Dont copy in exams
- Replies: 4
- Views: 4013
Dont copy in exams
in a class there is only 1 round table.there are total $m$ students.among them $n$ are copy cats(tuklifyer).the teacher wants to arrange them in such a way so that none of the bad ones(not even 2) sit beside each other.in how many ways can the teacher arrange them? @moon bhai,this is a problem made ...
- Tue Jan 11, 2011 3:10 pm
- Forum: Secondary Level
- Topic: highest turns
- Replies: 5
- Views: 4314
highest turns
for which combination of rubik's cube does it take to solve with the highest turns while there is no turn doing doubles?
- Sun Jan 09, 2011 11:41 am
- Forum: Geometry
- Topic: Problem I could not figure out.
- Replies: 5
- Views: 3823
Re: Problem I could not figure out.
disproved,won't work in the case of tan90!!!!!!!11
- Sun Jan 09, 2011 11:36 am
- Forum: Social Lounge
- Topic: Favorite mathematician?
- Replies: 35
- Views: 135000
Re: Favorite mathematician?
Leonard Euler
- Sat Jan 08, 2011 7:06 pm
- Forum: Secondary Level
- Topic: \tan law
- Replies: 9
- Views: 10595
Re: \tan law
can any1 tell me if it has been invented or not?
- Sat Jan 08, 2011 7:01 pm
- Forum: Geometry
- Topic: Problem I could not figure out.
- Replies: 5
- Views: 3823
Re: Problem I could not figure out.
let's assume that the co-ordinate of point C is rational.so the value of $$AB,BC,CA$$ is rational.so the area of $$\Delta ABC$$ is rational. now $$tan A=\frac{4\Delta}{(b^2+c^2-a^2)}$$ is rational.the others tans can also b proved like this. contradiction can be used to solve the other part. plz not...
- Sat Jan 08, 2011 11:50 am
- Forum: Social Lounge
- Topic: I am dark green now!
- Replies: 5
- Views: 3905
Re: I am dark green now!
go green