Hellow, everyone,
Tomorrow i am starting for Dhaka...
Why one day in advance? Caz i have headache after journey.
Bdw, please everyone pray for me.
Search found 238 matches
- Tue Feb 08, 2011 11:14 pm
- Forum: Social Lounge
- Topic: Tomorrow Starting for BdMO!
- Replies: 2
- Views: 2409
- Tue Feb 08, 2011 8:49 pm
- Forum: Secondary Level
- Topic: Prove P is prime
- Replies: 7
- Views: 4940
Re: Prove P is prime
nice problem to face.
- Tue Feb 08, 2011 8:45 pm
- Forum: Combinatorics
- Topic: magic cube!!!!!!!!!!!
- Replies: 3
- Views: 3486
Re: magic cube!!!!!!!!!!!
dont forget to add up this condition(this make the problem more complicated )
every side shouldn't contain the numbers from the set in one-to-one correspondence: $\{m, (m+1),(m+2),,,(m+8)\}$
every side shouldn't contain the numbers from the set in one-to-one correspondence: $\{m, (m+1),(m+2),,,(m+8)\}$
- Mon Feb 07, 2011 7:00 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National Higher Secondary 2007/9
- Replies: 10
- Views: 7911
Re: BdMO National Higher Secondary 2007/9
is it possible to solve it without calculas?
- Mon Feb 07, 2011 4:44 pm
- Forum: National Math Olympiad (BdMO)
- Topic: problem of nmo 2010 secondary
- Replies: 2
- Views: 2745
Re: problem of nmo 2010 secondary
first guess which circle would have the larges area. Then, evalute the angle measurment. Then, let it be $\theta$. Now, this angle create a area which vertex is the centre of the circle. Use the formula now:
- Sun Feb 06, 2011 6:40 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO Junior 2009/9
- Replies: 7
- Views: 5520
Re: BdMO Junior 2009/9
i try this problem for two years! Still cant solute it! I will try...... NowFahimFerdous wrote:Use 'cosine rule' and similarity of triangles.
- Sun Feb 06, 2011 12:42 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO Junior 2009/9
- Replies: 7
- Views: 5520
Re: BdMO Junior 2009/9
i am extremely sorry. I use mobile. Thus i cant make a pix :'(
- Sat Feb 05, 2011 10:47 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO 2011 National: Are you ready?
- Replies: 8
- Views: 5180
Re: Preparation for BdMO 2011 National
Avik Roy wrote:১) মাথা ঠাণ্ডা রাখ
২) মাথা ঠাণ্ডা রাখ
৩) মাথা ঠাণ্ডা রাখ
৪) কিছু প্র্যাকটিস কর
৫) পারলে আরো কিছু প্র্যাকটিস কর
wow! Super cool suggesion! Has it any $\copyright$ ?
- Sat Feb 05, 2011 10:36 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO Junior 2009/9
- Replies: 7
- Views: 5520
Re: BdMO Junior 2009/9
there was no diagram in question
- Sat Feb 05, 2011 10:03 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO Junior 2009/9
- Replies: 7
- Views: 5520
BdMO Junior 2009/9
One angle of a triangle is twise of another angle of the same triangle. An angle of this triangle is 120 degree. The bisector of the second largest triangle intersects its opposite side at point $D$. The distance of $D$ from the vertex containing the largest angle is $10\, cm$. If the length of the ...