অনুরণন

01/05/2015

খুব মজার। পড়ে দেখতে পার।

29/11/2014

you can enlist if you find this helpful... you can spread this among your friends... thanks, stay with Onuronon (অনুরণন)

29/08/2014

http://www.iflscience.com/brain/math-gifs-will-help-you-understand-these-concepts-better-your-teacher-ever-did

“Let's face it; by and large math is not easy, but that's what makes it so rewarding when you conquer a problem, and reach new heights of understanding.” Danica McKellar As we usher in the start of a new school year, it’s time to hit the ground running in your classes! Math can be pretty tough, but…

11/08/2014

Try to solve this...............

09/08/2014

n একটি প্রাইম সংখ্যা হবে যদি এর 1 এবং n ছাড়া অন্য কোন উৎপাদক না থাকে। এটি চেক করার একটি সহজ উপায় হচ্ছে 2 থেকে n-1 পর্যন্ত সংখ্যা দিয়ে ভাগ করে দেখা যে ভাগ যায় কিনা যেটা সাধারণত বোকারা করে থাকে। বুদ্ধিমানরা 2 থেকে n এর বর্গমূল পর্যন্ত ভাগ দিয়েই প্রাইম কিনা বলে দেয়।

প্রমাণ করতে হবে ২ থেকে n এর বর্গমূল পর্যন্ত ভাগ করে যদি ভাগ না যায় তাহলেই বলা যায় n একটি প্রাইম সংখ্যা।

09/08/2014

a^3+b^3+c^3=2008
where a,b,c are positive integers.
Find the value of a+b+c.

22/07/2014

i always dream to watch this event one day...
http://www.alaska-in-pictures.com/aurora-borealis-photos-cat.htm

08/01/2014

prove that, there exits no palindrome number of 2 digit which is a perfect square.

10/10/2013

Q: if i divide ∞ by ∞ , why wont get 1 as result ???

Ans :

Why ∞/∞ is not 1

One could think that ∞/∞ = 1, but this is wrong.

The answer depends on the kind of infinity: in fact, there are different kinds of infinity.
For example, consider f(x) = x2 and g(x) = x. In the limit x→∞ of the function f(x)/g(x), we have

limx→∞ f(x)/g(x) = limx→∞ x2/x = limx→∞ x = ∞;

so, both f(x) and g(x), in that limit, equal infinity, but f(x)/g(x) ≠ 1. If we have f(x) = 2x and g(x) = x, both f(x) and g(x) equal infinity (for x→∞), but

limx→∞ f(x)/g(x) = limx→∞ 2x/x = limx→∞ 2 = 2 ≠ 1.

So you see that infinity is something to check everytime!

courtesy: wiki.answers.com

10/10/2013

confusion around the term "infinity" is damn too high... this might tell us something
http://mathforum.org/library/drmath/view/62486.html

If 1 chocolate bar is divided among an infinite number of people, no one gets anything. Where did the chocolate bar go? Doesn't it imply that 1/infinity = infinitesimally small?