x 1 = − 3 2 π ≈ − 4,712 {\displaystyle {}x_{1}=-{\frac {3}{2}}\pi \approx -4{,}712} x 2 = − 1 2 π ≈ − 1,570 {\displaystyle {}x_{2}=-{\frac {1}{2}}\pi \approx -1{,}570} x 3 = 1 2 π ≈ 1,570 {\displaystyle {}x_{3}={\frac {1}{2}}\pi \approx 1{,}570} x 4 = 3 2 π ≈ 4,712 {\displaystyle {}x_{4}={\frac {3}{2}}\pi \approx 4{,}712}
x 2 = − 2 ( 3 − 3 ) ≈ − 1,592 {\displaystyle {}x_{2}=-{\sqrt {2\left(3-{\sqrt {3}}\right)}}\approx -1{,}592} x 3 = 2 ( 3 − 3 ) ≈ 1,592 {\displaystyle {}x_{3}={\sqrt {2\left(3-{\sqrt {3}}\right)}}\approx 1{,}592} x 4 = 2 ( 3 + 3 ) ≈ 3,076 {\displaystyle {}x_{4}={\sqrt {2\left(3+{\sqrt {3}}\right)}}\approx 3{,}076}
