\( {{\pi}} \left( {\frac{{855}}{2} − 213 · \frac{4}{2}} \right) = −\frac{3}{2}{{\pi}} \)\( 2{{\pi}} − \frac{3}{2}{{\pi}} = \frac{4}{2}{{\pi}} − \frac{3}{2}{{\pi}} = \frac{\pi }{2}\ \textrm{rad} \)Není zaškrtnuto
\( {{\pi}} \left( {\frac{{855}}{2} − 213 · \frac{4}{2}} \right) = −\frac{1}{2}{{\pi}} \)\( 2{{\pi}} − \frac{1}{2}{{\pi}} = \frac{4}{2}{{\pi}} − \frac{1}{2}{{\pi}} = \frac{3\pi }{2}\ \textrm{rad} \)Není zaškrtnuto
\( {{\pi}} \left( {\frac{{855}}{2} − 213 · \frac{4}{2}} \right) = −\frac{5}{2}{{\pi}} \)\( 2{{\pi}} − \frac{5}{2}{{\pi}} = \frac{4}{2}{{\pi}} − \frac{5}{2}{{\pi}} = −\frac{\pi }{2}\ \textrm{rad} \)Není zaškrtnuto
\( {{\pi}} \left( {\frac{{855}}{2} − 213 · \frac{4}{2}} \right) = −\frac{7}{2}{{\pi}} \)\( 2{{\pi}} − \frac{7}{2}{{\pi}} = \frac{4}{2}{{\pi}} − \frac{7}{2}{{\pi}} = −\frac{3\pi }{2}\ \textrm{rad} \)Není zaškrtnuto