Search found 33 matches
- Thu Aug 21, 2014 5:51 am
- Forum: International Mathematical Olympiad (IMO)
- Topic: IMO 2014 - Day 2 Problem 4
- Replies: 1
- Views: 2727
Re: IMO 2014 - Day 2 Problem 4
Let $$BM \cap CN=\chi$$. As $$\angle PAB = \angle BCA $$ and $$\angle CAB = \angle ABC$$, $$\triangle{ABP} \sim \triangle {ACQ}$$. $$\Rightarrow \angle{APB}=\angle{AQC}= \angle{A}$$. And $$\dfrac{AP}{BP}\dfrac{CQ}{AQ}$$ $$\Rightarrow \dfrac{PM}{BP}= \dfrac{CQ}{AN}$$. So, $$\triangle{BPM}~ \triangle{...
- Tue Feb 18, 2014 2:05 pm
- Forum: Physics
- Topic: Physics Olympiad: What is it and how to prepare (ইমরোজ খান)
- Replies: 10
- Views: 35758
Re: Physics Olympiad: What is it and how to prepare (ইমরোজ খ
Can anyone tell me the date of national physics olympiad 2014 ?
- Tue Feb 11, 2014 10:22 am
- Forum: Secondary Level
- Topic: Large = Large+big+small+little
- Replies: 5
- Views: 4538
Re: Large = Large+big+small+little
পুরা সলু দাও তাহমিদ।
- Mon Feb 10, 2014 10:23 pm
- Forum: Junior Level
- Topic: Digital original wanted
- Replies: 2
- Views: 3115
Re: Digital original wanted
The ans is 245.
- Mon Feb 10, 2014 9:48 pm
- Forum: Junior Level
- Topic: Acute angled circular
- Replies: 13
- Views: 10099
Re: Acute angled circular
@ Raiyan
When we want to make a triangle we have to choose three points. That's why we will choose 3 points from 7 points. So C(7,3) will be the number of total triangles.
When we want to make a triangle we have to choose three points. That's why we will choose 3 points from 7 points. So C(7,3) will be the number of total triangles.
Re: beloon
চাপ কমে যাওয়ার কারনেই এরকম হয়।
- Sat Dec 14, 2013 8:36 pm
- Forum: News / Announcements
- Topic: Combinatorics Workshop: Exam 1 (12.12.13)
- Replies: 18
- Views: 13333
Re: Combinatorics Workshop: Exam 1 (12.12.13)
তাহলে কালকে কি ক্লাস হবে ?
- Thu Dec 12, 2013 2:20 pm
- Forum: News / Announcements
- Topic: Combinatorics Workshop: Exam 1 (12.12.13)
- Replies: 18
- Views: 13333
Re: Combinatorics Workshop: Exam 1 (12.12.13)
উত্তর কি বাংলায় লেখা যাবে ?
- Wed Dec 11, 2013 2:53 pm
- Forum: News / Announcements
- Topic: Combinatorics Workshop: Day 8 (11.12.13)
- Replies: 8
- Views: 6977
Re: Combinatorics Workshop: Day 8 (11.12.13)
প্রথম link এ গেলে "Not Found" দেখাচ্ছে।
- Sun Dec 08, 2013 11:20 pm
- Forum: News / Announcements
- Topic: Combinatorics Workshop: Day 4 (07.12.13)
- Replies: 7
- Views: 6301
Re: Combinatorics Workshop: Day 4 (07.12.13)
ABAAAB তে ক্ষুদ্রতম সেগমেন্ট A হলে ABAABA( B27* b,P-22 ) তে এটা A হওয়ারই কথা। তাহলে এটা পরিবর্তিত হয়ে B হবে। এতে পুরো স্ট্রিংটা হবে BBAABA. কিন্তু বইয়ে এটার উত্তর দেয়া আছে BABABA. আসলে ব্যাপারটা কি ? নাকি আমিই ভুল।