Search found 20 matches
- Fri Jan 29, 2016 1:07 am
- Forum: Secondary Level
- Topic: Prime Numbers
- Replies: 2
- Views: 3137
Re: Prime Numbers
Nice! Thanks.
- Thu Jan 28, 2016 12:55 pm
- Forum: Secondary Level
- Topic: Find (p,q)
- Replies: 1
- Views: 2575
Find (p,q)
If p,q are two prime numbers and there are two positive and different solutions to the equation x²-px+q= 0, find (p,q) .
- Thu Jan 28, 2016 12:43 pm
- Forum: Secondary Level
- Topic: Find p
- Replies: 1
- Views: 2670
Find p
$p$ is a prime number. Summation of all the integers from $1$ to $p$ is divisible by $p$ and other prime numbers less than $p$. Find the values of $p$.
- Thu Jan 28, 2016 12:22 pm
- Forum: Secondary Level
- Topic: Prime Numbers
- Replies: 2
- Views: 3137
Prime Numbers
For $n\in \mathbb N$, find the values of $n$, so that $3n-4, 4n-3$ and $5n-3$ can be prime numbers.
- Thu Jan 28, 2016 12:00 pm
- Forum: Number Theory
- Topic: A Problem in Number Theory
- Replies: 2
- Views: 3373
Re: A Problem in Number Theory
I don't get you Adib.
- Thu Jan 28, 2016 11:52 am
- Forum: Secondary Level
- Topic: Number Theory
- Replies: 5
- Views: 4745
Re: Number Theory
But if b is negative, (a-b)² >(a+b)² .
- Wed Jan 27, 2016 11:31 pm
- Forum: Secondary Level
- Topic: Number Theory
- Replies: 5
- Views: 4745
Re: Number Theory
Thanks a lot! Thought it harder. (a-b)²= 0--that's what I didn't get at first.
- Wed Jan 27, 2016 6:50 pm
- Forum: Secondary Level
- Topic: Number Theory
- Replies: 5
- Views: 4745
Number Theory
If 4ab is divisible by (a+b)² then prove that, a=b .
- Thu Jan 07, 2016 2:58 pm
- Forum: Secondary: Solved
- Topic: Dhaka Secondary 2011/2 (Junior 2011/4)
- Replies: 8
- Views: 14151
Re: Dhaka Secondary 2011/2 (Junior 2011/4)
What's a perfect even square?
- Wed Jan 14, 2015 5:27 pm
- Forum: Junior: Solved
- Topic: Junior Divisional 2013/2
- Replies: 3
- Views: 9305
Re: Junior Divisional 2013/2
I am fully agreed with the logic shown by Raiyan Jamil. I also think that the minimum and only number of teams that should be formed is 200, which means each team would contain a single student. It can also be ensured that no team has any member who is disliked by another team-mate (here's no option...