Search found 238 matches

by Hasib
Sat Mar 10, 2012 12:40 am
Forum: Computer Science
Topic: ABOUT SEARCH ENGINES
Replies: 4
Views: 5283

Re: About Search Engines

For learning this, you have to join GOOGLE! lol
by Hasib
Sat Mar 10, 2012 12:36 am
Forum: Computer Science
Topic: IDE
Replies: 26
Views: 17235

Re: IDE

I use ideone.com
the online compiler :)
dont need any pc :)
by Hasib
Fri Mar 09, 2012 9:30 pm
Forum: Number Theory
Topic: Problem related to programming
Replies: 2
Views: 1097

Problem related to programming

There is sequence 1,12,123,1234,..., 12345678910,.... Now you are given two integers A and B, you have to find the number of integers from A th number to B th(inclusive) number, which are divisible by 3. For example, let A=3. B=5. So, the numbers in the sequence are,123, 1234, 12345. And 123, 12345 ...
by Hasib
Sat Nov 26, 2011 12:44 am
Forum: Higher Secondary Level
Topic: Prove me wrong
Replies: 95
Views: 26912

Re: Prove me wrong

$0^{-1}$ is undefined. So, you can not write something equal to it.
by Hasib
Sun Nov 06, 2011 9:45 am
Forum: National Math Olympiad (BdMO)
Topic: Problems Involving Triangles
Replies: 8
Views: 2843

Re: Problems Involving Triangles

Hey, i am in a journey. I'll try it at home after reaching :D Thanks for the message!
by Hasib
Thu Nov 03, 2011 11:38 pm
Forum: National Math Camp
Topic: Rearrangement inequalty :(BOMC)
Replies: 4
Views: 2042

Re: Rearrangement inequalty :(BOMC)

@Willpower:

note that it isnt bound to be $a_i=a_i'$

it may be $a_1=a_5'$ for example.
by Hasib
Thu Nov 03, 2011 12:34 pm
Forum: National Math Camp
Topic: Exam - Bangladesh Online Math Camp
Replies: 7
Views: 3470

Re: Exam - Bangladesh Online Math Camp

আমি মোবাইলেই ভালো ল্যাটেক্স লিখতে পারি, আমার স্যারকে পিসি আনতে বলসিলাম। তারপর দেখি একটা টাইপ করতে করতে আধা ঘন্টা শেষ। তারপর বাকি ছিল ১ ঘন্টা ২০ মিনিট। তাড়াতাড়ি মুবাইলে করা শুরু করলাম। মোবাইলে আবার অপেরা মিনি ল্যাটেক্স সাপোর্ট করে না. তাই লিখে ফেসবুকে করে আমার স্যারের ফেবু আইডিতে পাঠাইলাম.. তারপর স...
by Hasib
Thu Nov 03, 2011 9:52 am
Forum: National Math Camp
Topic: Exam - Bangladesh Online Math Camp
Replies: 7
Views: 3470

Re: Exam - Bangladesh Online Math Camp

মুপাইলে ল্য্যটেক্স টাইপ করতে গিয়া আঁধা ঘন্টা দেরী হয়ে গেসে । তানভীর ভাই, মাইন্ড খাইয়েন না, কইলাম............ :D :D
by Hasib
Mon Oct 31, 2011 3:15 pm
Forum: National Math Camp
Topic: exercise 1.108 (Greece 2008) [BOMC]
Replies: 2
Views: 1294

Re: exercise 1.108 (Greece 2008) [BOMC]

But, as far as i proved,

\[(\frac{\sum_{i=1}^{n} x_i^2}{\sum_{i=1}^{n} x_i})^n \geq x_1\cdot \cdot x_n\]

but, how raise the power $\frac{k}{t}$?