BdMO National Higher Secondary 2007/9

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nafistiham
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Re: BdMO National Higher Secondary 2007/9

Unread post by nafistiham » Tue Jan 10, 2012 6:58 pm

nafistiham wrote:i think it'll be a circle whose radius is $\frac {1}{\sqrt 2}$
so,the area will be $\frac {\pi}{2}$
i was so dumb not to think about the mid points but the whole line :x :x
\[\sum_{k=0}^{n-1}e^{\frac{2 \pi i k}{n}}=0\]
Using $L^AT_EX$ and following the rules of the forum are very easy but really important, too.Please co-operate.
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