are your infos correct?you know, what is meant by $ a,b $ positive integers and $ a+b=2 $sm.joty wrote:Let $a,b$ positive integers and $a+b=2$.What is the minimum and maximum value of $\frac{1}{1+a^n}+\frac{1}{1+b^n}$
for any positive integer $n$
Search found 33 matches
- Sun Apr 01, 2012 3:44 pm
- Forum: National Math Camp
- Topic: China-1990-1
- Replies: 4
- Views: 3835
Re: China-1990-1
- Sun Apr 01, 2012 3:28 pm
- Forum: National Math Camp
- Topic: Advanced P-3(BOMC-2)
- Replies: 20
- Views: 12262
Re: Advanced P-3(BOMC-2)
i still don't get it.we are selecting $ m $ st $ m $ is always greater than $ k $.isn't it?
- Sun Apr 01, 2012 3:18 pm
- Forum: National Math Camp
- Topic: Advance P-4(BOMC-2)
- Replies: 5
- Views: 4170
Re: Advance P-4(BOMC-2)
is there any tricky solution?i did tedious job like
the answer is
- Sun Apr 01, 2012 2:59 am
- Forum: National Math Camp
- Topic: Advanced P-6(BOMC-2)
- Replies: 4
- Views: 3884
Re: Advanced P-6(BOMC-2)
sorry for using bangla.but without it, i possibly couldn't clarify.
an example:if $ 13d-1 $ is not perfect square, that is enough
an example:if $ 13d-1 $ is not perfect square, that is enough
- Sun Apr 01, 2012 2:55 am
- Forum: National Math Camp
- Topic: Advanced P-6(BOMC-2)
- Replies: 4
- Views: 3884
Re: Advanced P-6(BOMC-2)
এই সেট থেকে ৬ টা $ ab-1 $ পাওয়া যাবে ।প্রমাণ করতে হবে এর ভিতর অন্তত ১টা (সবগুলো হওয়ার দরকার নেই) perfect square হবে না ।nafistiham wrote:I am really confused. How can it be where $2\cdot5-1=3^2,2\cdot13-1=5^2,13\cdot5-1=8^2$
I think I am lost somewhere.please clarify.
- Sun Apr 01, 2012 2:02 am
- Forum: National Math Camp
- Topic: Advanced P-3(BOMC-2)
- Replies: 20
- Views: 12262
Re: Advanced P-3(BOMC-2)
same as mahi.the idea crossed my mind through
- Sat Mar 31, 2012 6:56 pm
- Forum: National Math Camp
- Topic: Advanced P-1 (BOMC-2)
- Replies: 10
- Views: 7346
Re: Advanced P-1 (BOMC-2)
b.
so far i have made
note: i made calculation error in this modular equation
so far i have made
- Sat Mar 31, 2012 6:40 pm
- Forum: National Math Camp
- Topic: Advanced P-1 (BOMC-2)
- Replies: 10
- Views: 7346
- Sat Mar 31, 2012 5:07 pm
- Forum: Site Support
- Topic: Problem with private message
- Replies: 4
- Views: 5785
Re: Problem with private message
hey, i have the same problem too.msg gone to outbox
- Sat Mar 31, 2012 1:48 pm
- Forum: National Math Camp
- Topic: A Plan
- Replies: 15
- Views: 8936
Re: A Plan
excited!!!!!