Search found 65 matches
- Sun Dec 25, 2016 8:51 am
- Forum: Divisional Math Olympiad
- Topic: Dhaka regional 2015 secondary/4
- Replies: 2
- Views: 3199
Re: Dhaka regional 2015 secondary/4
Can anyone tell me a resource for understanding spiral similarity well?
- Sat Dec 24, 2016 9:04 am
- Forum: Physics
- Topic: About a problem from the BdPhO '17 category A
- Replies: 1
- Views: 2689
About a problem from the BdPhO '17 category A
The following problem seems to be wrong. The third echo should be in $(3+3)+(5+5) = 16$ second. What's your opinions?
- Wed Nov 30, 2016 9:06 am
- Forum: Number Theory
- Topic: Number thoery problem.
- Replies: 0
- Views: 2108
Number thoery problem.
If $x , y , n$ are positive integers.Find all possible values of n such that $x + 3 = n(y - 3)$ and $3(x - n) = y + n$.
- Mon Nov 28, 2016 10:41 am
- Forum: Junior Level
- Topic: Need help to solve number theory problems
- Replies: 5
- Views: 4580
Need help to solve number theory problems
I am trying these two problem for many days . Can anyone help me? :- Problem no.1 : Prove that for all integer $x$ and $y$ there is no solution for $15x^2 - 7y^2 = 9$ Problem no.2 : $X$ is a two digit positive integer and $Y$ is a three digit positive integer. If $X$ is increased by $Y%$ and $Y$ is ...
- Mon Nov 28, 2016 10:26 am
- Forum: Test Forum
- Topic: Test 1 LaTeX
- Replies: 13
- Views: 19985
Re: Test 1 LaTeX
a^2 + b^2 = c^2