BEAUTIFUL PI IN NEW MOOD

For students of class 9-10 (age 14-16)
farhan
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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
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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.

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Phlembac Adib Hasan
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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
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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.

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