Search found 92 matches

by bristy1588
Tue Jan 14, 2014 10:04 pm
Forum: Divisional Math Olympiad
Topic: Barisal Secondary 2013 / 8
Replies: 12
Views: 3867

Re: Barisal Secondary 2013 / 8

Mahi, Why don't you explain the Jensen's Inequality ? There is a formula that I think you can find in Plane Euclidean Geometry. $ AI = \frac{r}{sin(A/2) } $ $ BI = \frac{r}{sin(B/2)} $ $ CI = \frac{r}{sin(C/2)} $ Here $r$ is the inradius. In the interval $[0, \pi]$, $ sin(\frac{x}{2}) $ is a concave...
by bristy1588
Tue Jun 26, 2012 6:43 pm
Forum: Geometry
Topic: Solve it Quick : Circles and Squares..
Replies: 2
Views: 980

Solve it Quick : Circles and Squares..

A circle intersects a square at 8 distinct points. Prove that the sum of the areas of the circle that lies outside the square and the sum of areas of the square which lies outside the square are equal.

Pls. Solve it Quickly. I need it ASAP!
by bristy1588
Sat Mar 31, 2012 12:11 pm
Forum: National Math Camp
Topic: A Plan
Replies: 15
Views: 3354

Re: A Plan

And it will be very helpful if we can discuss the ways to think when we get a problem.
The tools that we use, etc
by bristy1588
Sat Mar 31, 2012 12:10 pm
Forum: National Math Camp
Topic: A Plan
Replies: 15
Views: 3354

Re: A Plan

sourav das wrote:Fahim and I've an unofficial plan for this week. If everyone wants to work really hard and interested, we can share it with you....
Sourav, I am interested, Could u share it please? And i need a lot of help in NT.
by bristy1588
Fri Mar 30, 2012 7:16 am
Forum: National Math Camp
Topic: An IMO problem (BOMC-2)
Replies: 3
Views: 1309

Re: An IMO problem (BOMC-2)

Nice! Its wonderful to see how little things are so helpful in problems!
by bristy1588
Thu Mar 29, 2012 8:08 pm
Forum: National Math Camp
Topic: দ্বিতীয় বাংলাদেশ অনলাইন গণিত ক্যাম্প
Replies: 57
Views: 11058

Re: দ্বিতীয় বাংলাদেশ অনলাইন গণিত ক্যাম্প

@Fahim and @Sourav,
Why dont we do sth? Lets have a mock tomorrow and lets continue the discussion for another week and then have the exam? Shudnt that be better?? In that way we cud discuss more.
by bristy1588
Thu Mar 29, 2012 4:42 pm
Forum: National Math Camp
Topic: দ্বিতীয় বাংলাদেশ অনলাইন গণিত ক্যাম্প
Replies: 57
Views: 11058

Re: দ্বিতীয় বাংলাদেশ অনলাইন গণিত ক্যাম্প

It will be better if the time is extended. And please can anyone tell me the details about the exam?
by bristy1588
Sun Mar 11, 2012 9:13 am
Forum: Number Theory
Topic: ACOPS- NT problem
Replies: 3
Views: 1296

ACOPS- NT problem

Find all $x$ such that $ x^2+ 2$ is a prime.