Search found 1007 matches
- Tue Feb 13, 2018 8:22 pm
- Forum: Site Support
- Topic: Regional Olympiad 2016
- Replies: 3
- Views: 18836
Re: Regional Olympiad 2016
I have already solved it.According to the question,$CE=ED$ .So,$2ED=CD$ and $2EF=BC$.The answer is $6$.
- Tue Feb 13, 2018 8:18 pm
- Forum: Site Support
- Topic: How to apply.
- Replies: 3
- Views: 19806
Re: How to apply.
You are too late for 2018 Math Olympiad.Wait untill decemeber to get the news of registration of Regional Math Olympid 2019.
- Tue Feb 13, 2018 8:07 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BDMO 2017 National round Secondary 3
- Replies: 6
- Views: 4606
Re: BDMO 2017 National round Secondary 3
Sorry,I was totally wrong.samiul_samin wrote: ↑Fri Feb 02, 2018 2:16 ama=-9,b=4,c=-1 .So, the desired answer is -7.We can easyliy get these values by squaring both side of the first equation when in the left side there will be only $x^2$.
- Tue Feb 13, 2018 8:37 am
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National Secondary: Problem Collection(2016)
- Replies: 17
- Views: 11580
Re: BdMO National Secondary: Problem Collection(2016)
Where is the problem 7?
- Fri Feb 02, 2018 6:28 pm
- Forum: Junior Level
- Topic: problem 5 (elementary) Iranian geometry Olympiad 2017
- Replies: 4
- Views: 8219
Re: problem 5 (elementary) Iranian geometry Olympiad 2017
[img]Here is the official solution.[/img
- Fri Feb 02, 2018 2:17 am
- Forum: National Math Olympiad (BdMO)
- Topic: How two altitudes determine the third
- Replies: 3
- Views: 3380
Re: How two altitudes determine the third
You can use the triangle inequality to get the answer.
- Fri Feb 02, 2018 2:16 am
- Forum: National Math Olympiad (BdMO)
- Topic: BDMO 2017 National round Secondary 3
- Replies: 6
- Views: 4606
Re: BDMO 2017 National round Secondary 3
a=-9,b=4,c=-1 .So, the desired answer is -7.We can easyliy get these values by squaring both side of the first equation when in the left side there will be only $x^2$.
- Fri Feb 02, 2018 2:11 am
- Forum: National Math Olympiad (BdMO)
- Topic: BDMO 2017 National round Secondary 1
- Replies: 19
- Views: 18082
Re: BDMO 2017 National round Secondary 1
(a)$1/8$☺☺☺
- Fri Feb 02, 2018 2:10 am
- Forum: National Math Olympiad (BdMO)
- Topic: A Acute angled triangle
- Replies: 1
- Views: 1928
Re: A Acute angled triangle
This topic is already deiscussed and solved in this forum.
- Fri Feb 02, 2018 2:08 am
- Forum: National Math Olympiad (BdMO)
- Topic: BDMO 2017 National round Secondary 6
- Replies: 9
- Views: 8430
Re: BDMO 2017 National round Secondary 6
But what will be happened if we rotate this octahedron like upside down?