BEAUTIFUL PI IN NEW MOOD

For students of class 9-10 (age 14-16)
farhan
Posts: 4
Joined: Thu Apr 05, 2012 12:06 pm

BEAUTIFUL PI IN NEW MOOD

Unread post by farhan » Wed May 30, 2012 9:11 pm

I KNOW ALL OF U CAN PROVE-------
\[\pi = {360\times sin\frac{\theta }{2}}\]
here theta is infinitely small a radian angle.
Last edited by *Mahi* on Thu May 31, 2012 10:42 am, edited 2 times in total.
Reason: LaTeXed properly

tanvirab
Posts: 446
Joined: Tue Dec 07, 2010 2:08 am
Location: Pasadena, California, U.S.A.

Re: BEAUTIFUL PI IN NEW MOOD

Unread post by tanvirab » Thu May 31, 2012 2:05 am

fix your code. I tried to fix it for you, but I don't understand what you are tying to say.

User avatar
Phlembac Adib Hasan
Posts: 1016
Joined: Tue Nov 22, 2011 7:49 pm
Location: 127.0.0.1
Contact:

Re: BEAUTIFUL PI IN NEW MOOD

Unread post by Phlembac Adib Hasan » Thu May 31, 2012 10:41 am

farhan wrote:I KNOW ALL OF U CAN PROVE-------\[\pi = 360\times sin\frac {\theta }{2}
\]
here theta is infinitely small a radian angle.
I guess he said this.Then my answer is we can prove \[\pi=\lim_{n\to \infty}n\times sin\left ( \frac {180}{n}\right )\]

tanvirab
Posts: 446
Joined: Tue Dec 07, 2010 2:08 am
Location: Pasadena, California, U.S.A.

Re: BEAUTIFUL PI IN NEW MOOD

Unread post by tanvirab » Thu May 31, 2012 1:46 pm

farhan wrote:I KNOW ALL OF U CAN PROVE-------
\[\pi = {360\times sin\frac{\theta }{2}}\]
here theta is infinitely small a radian angle.
That's clearly not true; the left hand side is a constant, and the right hand side is a non-constant function whose limit at zero is not the left hand side.

Post Reply