Search found 25 matches
- Sat Feb 23, 2013 8:48 pm
- Forum: Secondary Level
- Topic: Help with Combinatorics
- Replies: 4
- Views: 3970
Help with Combinatorics
What are consistently dominated sequences? (with sufficient examples)
- Fri Feb 22, 2013 12:41 pm
- Forum: Secondary Level
- Topic: Some Conceptual Problems
- Replies: 1
- Views: 2241
Some Conceptual Problems
Anyone gotta help me with the following terms?
1) n-tuples
2) parameters
3) binary operations, groups, rings and fields
1) n-tuples
2) parameters
3) binary operations, groups, rings and fields
- Thu Feb 07, 2013 10:04 pm
- Forum: National Math Olympiad (BdMO)
- Topic: BdMO National 2012: Secondary 8
- Replies: 10
- Views: 8070
Re: BdMO National 2012: Secondary 8
@Tahmid
How can we say that
$\angle DAE+\angle ECD=180^{\circ} \Rightarrow \angle DAE+2(\angle DAC+\angle ACD)$
$\Rightarrow 3\angle DAE=180^{\circ}$
How can we say that
$\angle DAE+\angle ECD=180^{\circ} \Rightarrow \angle DAE+2(\angle DAC+\angle ACD)$
$\Rightarrow 3\angle DAE=180^{\circ}$
- Wed Feb 06, 2013 8:30 pm
- Forum: Secondary Level
- Topic: Help with BDMO Problems
- Replies: 1
- Views: 2646
Help with BDMO Problems
1. In triangle ABC, medians AD & CF intersect at point G. P is an arbitrary point on AC. PQ & PR are parallel to AD & CF respectively. PQ intersects BC at Q & PR intersects AB at R. If QR intersects AD at M & CF at N, then prove that area of triangle GMN is (A)/8 where (A) = area enclosed by PQ, PR,...
- Wed Jan 30, 2013 11:42 am
- Forum: Secondary Level
- Topic: Little Trigonometry
- Replies: 2
- Views: 2492
Little Trigonometry
If cos 3=$\sqrt p$,
Then cos 3.cos 6.cos 12$\cdots$cos 384=?
*All angles expressed in degrees
Then cos 3.cos 6.cos 12$\cdots$cos 384=?
*All angles expressed in degrees