Search found 7 matches
- Sun May 01, 2011 8:58 pm
- Forum: Secondary Level
- Topic: Keo ki proman korte parbe - Por por 5 ti kromic sonkhar gunf
- Replies: 2
- Views: 2764
Keo ki proman korte parbe - Por por 5 ti kromic sonkhar gunf
Keu ki proman korte parbe - por por 5 ti kromic sonkhar gunfol 5! (factorial) diye bivajjo ?
- Sun Jan 30, 2011 10:04 am
- Forum: National Math Olympiad (BdMO)
- Topic: Prove
- Replies: 2
- Views: 3448
Prove
Prove that (n^5 - n) is divided by 5 .
- Sun Jan 30, 2011 9:50 am
- Forum: Secondary Level
- Topic: Largest value of (x+y)
- Replies: 4
- Views: 3695
Re: Largest value of (x+y)
The answar is 182.818181... . When the y is 182.81818... and the x is o . We divide by the smaller number which is 11 . If we divide by the 20 or both the answar will be smaller then 182.818181... . So thats the answar .
- Wed Jan 26, 2011 1:50 pm
- Forum: Divisional Math Olympiad
- Topic: A Problem
- Replies: 4
- Views: 3476
Re: A Problem
I can't understad ur answar . May be it is not the answar
- Wed Jan 26, 2011 10:04 am
- Forum: Secondary: Solved
- Topic: Dhaka Secondary 2010/6
- Replies: 7
- Views: 5492
Re: Dhaka Secondary 2010/6
Yaap . Ami bistarito vabe bollam .
- Wed Jan 26, 2011 10:00 am
- Forum: Secondary: Solved
- Topic: Dhaka Secondary 2009/2
- Replies: 6
- Views: 10896
Re: Dhaka Secondary 2009/2
FroM (DBC)^2
- Wed Jan 26, 2011 9:58 am
- Forum: Secondary: Solved
- Topic: Dhaka Secondary 2009/11
- Replies: 4
- Views: 4739
Re: Dhaka Secondary 2009/11
Ok I am giving some hints,
4^502 = 2^2008,
and 2 x 2^2008 = 2^2009 .
and (a+b)^2 - (a-b)^2 = 2a^2 + 2b^2 . Now try yourself .
4^502 = 2^2008,
and 2 x 2^2008 = 2^2009 .
and (a+b)^2 - (a-b)^2 = 2a^2 + 2b^2 . Now try yourself .