$\displaystyle S = tan^{-1}(1/3)+tan^{-1}(1/5)+tan^{-1}(1/7)+..........+tan^{-1}(1/(2n-1))$

if S is $\displaystyle \pi/4$ find $\displaystyle n$

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- May 3rd 2010, 03:53 AMbanku12Inverse trigo prob
$\displaystyle S = tan^{-1}(1/3)+tan^{-1}(1/5)+tan^{-1}(1/7)+..........+tan^{-1}(1/(2n-1))$

if S is $\displaystyle \pi/4$ find $\displaystyle n$ - May 3rd 2010, 10:31 PMGrandad