## Search found 13 matches

Tue Jan 14, 2014 5:55 pm
Topic: BdMO National 2013: Secondary 8, Higher Secondary 6
Replies: 7
Views: 2259

### Re: BdMO National 2013: Secondary 8, Higher Secondary 6

We induct on n. The result is trivial for $n=1,2$. We assume that it is true for $n=m$. Now we prove that it is true for $n=m+1$. Among $m+1$ cities, if there exists a city which is connected with 0 or 1 city, then there are $m+1$ or m roads among the rest m cities.But by our induction hypothesis, ...
Tue Jan 14, 2014 4:55 pm
Topic: BdMO National 2013: Secondary 7
Replies: 3
Views: 1279

=[APB]+[ARP]+[BPQ]+[PQMR]$Or,$[AFR]+[APB]+[BQC]=[PQMR]$Or,$[AFR]+[APB]+[BQC]-[PQMR]=0$Mon Jan 13, 2014 3:43 pm Forum: National Math Olympiad (BdMO) Topic: BdMO National 2013: Secondary 7 Replies: 3 Views: 1279 ### Re: BdMO National 2013: Secondary 7 Is the question correct? Will it be$MX+NY=RS$or$MY+NX=RS$? Mon Jan 13, 2014 2:57 pm Forum: National Math Olympiad (BdMO) Topic: BdMO National 2013: Secondary, Higher Secondary 3 Replies: 4 Views: 1375 ### Re: BdMO National 2013: Secondary, Higher Secondary 3 I didnt need the$AB=7$part. My answer is$0\$
Am I missing anything?
Mon Jan 13, 2014 2:26 pm
Topic: BdMO National 2013: Secondary 5
Replies: 4
Views: 1383

### Re: BdMO National 2013: Secondary 5

I also got 5/12
Wed Dec 11, 2013 1:28 pm
Forum: News / Announcements
Topic: Combinatorics Workshop: Day 8 (11.12.13)
Replies: 8
Views: 2230

### Re: Combinatorics Workshop: Day 8 (11.12.13)

Thats not what I meant. Its corrected now. Sorry
Wed Dec 11, 2013 11:54 am
Forum: News / Announcements
Topic: Combinatorics Workshop: Day 8 (11.12.13)
Replies: 8
Views: 2230

### Re: Combinatorics Workshop: Day 8 (11.12.13)

Day after tomorrow 2 exams in school :/
Sun Sep 01, 2013 11:14 pm
Forum: News / Announcements
Topic: Online Geometry Camp 2014 Phase 1
Replies: 19
Views: 5870

### Re: Online Geometry Camp 2014 Phase 1

I tried something like fusing brahmagupta theorem and sine law. But it got me nowhere. @ mursalin
Sun Sep 01, 2013 10:19 pm
Forum: News / Announcements
Topic: Online Geometry Camp 2014 Phase 1
Replies: 19
Views: 5870

### Re: Online Geometry Camp 2014 Phase 1

Anyone solved problem no. 4 of day 5?