Search found 17 matches
- Sat Jul 08, 2017 7:31 pm
- Forum: Combinatorics
- Topic: need the solution
- Replies: 5
- Views: 8147
need the solution
x takes part in three subjects physics, chemistry and mathematics.Each of the subjects is of 100 marks.How many ways can he obtain 200 out of 300?
- Mon Dec 12, 2016 11:40 pm
- Forum: Divisional Math Olympiad
- Topic: regional mo 2015
- Replies: 3
- Views: 3845
Re: regional mo 2015
Disclose the first approach
- Sat Dec 10, 2016 12:49 pm
- Forum: Divisional Math Olympiad
- Topic: regional mo 2015
- Replies: 3
- Views: 3845
regional mo 2015
this is a problem of regional math olympiad 2015
- Thu Oct 27, 2016 3:28 pm
- Forum: Secondary Level
- Topic: why I'm getting 2 answers contrary to each other
- Replies: 4
- Views: 5009
Re: why I'm getting 2 answers contrary to each other
You said that my second result is not always true.So if it is true in some cases, then wont the theorem be wrong?
- Wed Oct 26, 2016 9:53 pm
- Forum: Secondary Level
- Topic: why I'm getting 2 answers contrary to each other
- Replies: 4
- Views: 5009
Re: why I'm getting 2 answers contrary to each other
Perhaps, nobody is getting my question.In the attachment you can see I got two results but they are contrary.The theorem is sum of any two sides of a triangle is greater than twice of the median drawn to the third side.Firstly, I proved that.It was AB+AC>2AD.However, interesting thing was in the sec...
- Wed Oct 26, 2016 8:02 am
- Forum: Secondary Level
- Topic: why I'm getting 2 answers contrary to each other
- Replies: 4
- Views: 5009
why I'm getting 2 answers contrary to each other
It is an extra of general math on chapter 6.3
- Sun Oct 09, 2016 2:17 pm
- Forum: Higher Secondary Level
- Topic: external section formula
- Replies: 6
- Views: 9909
Re: external section formula
Lets talk out of vectors.Supposing if a point C divides a line segment AB externally what would it mean?Will it mean C is closer to A or B?Why would it mean so?
- Fri Oct 07, 2016 1:12 pm
- Forum: Higher Secondary Level
- Topic: external section formula
- Replies: 6
- Views: 9909
Re: external section formula
How can a ratio be negative?Is it because of different direction?
- Fri Oct 07, 2016 2:41 am
- Forum: Higher Secondary Level
- Topic: external section formula
- Replies: 6
- Views: 9909
Re: external section formula
I don't know which is correct or why that would be correct.
- Fri Oct 07, 2016 2:40 am
- Forum: Higher Secondary Level
- Topic: external section formula
- Replies: 6
- Views: 9909
Re: external section formula
the second part of that external section formula.