The shell command<br />"/home/hocmai/cgi-bin/mimetex.linux" -e "/home/hocmai/moodledata/filter/tex/c8b2d7e9f27ac6f9d183b9a8603fda5c.gif" -- '\Large  z_1 = 2\left( {\cos \frac{\pi }{{12}} + i\sin \frac{\pi }{{12}}} \right);z_2 = 2\left( {\cos \frac{{13\pi }}{{12}} + i\sin \frac{{13\pi }}{{12}}} \right); \\ z_3 = 4\left[ {\cos \left( { - \frac{\pi }{6}} \right) + i\sin \left( {\frac{\pi }{6}} \right)} \right];z_4 = -2\sin \frac{{7\pi }}{{12}} - 2i\cos \frac{{7\pi }}{{12}} \\ '<br />returned status = 126<br />
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