# Math Help - summation

1. ## summation

Calculate
$
\sum\limits_{\theta = 0}^n {\sin \left( {\frac{A}
{{2^\theta }}} \right)}

$

where $
{A \in \left( {0,2\pi } \right)}
$

2. Originally Posted by vivancos
Calculate
$\sum\limits_{\theta = 0}^n {\sin \left( {\frac{A}
{{2^\theta }}} \right)}$

where $
{A \in \left( {0,2\pi } \right)}
$
Do NOT use "" inside the math tags!

I am puzzled as to why you think that would have a simple sum. I doubt that can be simplified in any reasonable way.