The argument of the complex number $\sin \,\frac{{6\pi }}{5}\, + \,i\,\left( {1\, + \,\cos \,\frac{{6\pi }}{5}} \right)$ is
The argument of the complex number $\sin \,\frac{{6\pi }}{5}\, + \,i\,\left( {1\, + \,\cos \,\frac{{6\pi }}{5}} \right)$ is
- A
$\frac{{6\pi }}{5}$
- B
$\frac{{5\pi }}{6}$
- C
$\frac{{9\pi }}{10}$
- D
$\frac{{2\pi }}{5}$
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- [IIT 2003]