find the least +ve integer n such that

1/(sin45 sin46)+1/(sin47 sin48)+..........+1/(sin133 sin134) =1/sin (n)

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- December 24th 2010, 06:40 AM #1

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- December 24th 2010, 07:53 AM #2

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- December 24th 2010, 07:56 AM #3