Solución detallada
Tenemos la ecuación
$$x^{8} + 7 x^{8} = -8$$
Ya que la potencia en la ecuación es igual a = 8 y miembro libre = -8 < 0,
significa que la ecuación correspondiente no tiene soluciones reales
Las demás 8 raíces son complejas.
hacemos el cambio:
$$z = x$$
entonces la ecuación será así:
$$z^{8} = -1$$
Cualquier número complejo se puede presentar que:
$$z = r e^{i p}$$
sustituimos en la ecuación
$$r^{8} e^{8 i p} = -1$$
donde
$$r = 1$$
- módulo del número complejo
Sustituyamos r:
$$e^{8 i p} = -1$$
Usando la fórmula de Euler hallemos las raíces para p
$$i \sin{\left(8 p \right)} + \cos{\left(8 p \right)} = -1$$
es decir
$$\cos{\left(8 p \right)} = -1$$
y
$$\sin{\left(8 p \right)} = 0$$
entonces
$$p = \frac{\pi N}{4} + \frac{\pi}{8}$$
donde N=0,1,2,3,...
Seleccionando los valores de N y sustituyendo p en la fórmula para z
Es decir, la solución será para z:
$$z_{1} = - \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}$$
$$z_{2} = \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} - i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}$$
$$z_{3} = - \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} - i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}$$
$$z_{4} = \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} + i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}$$
$$z_{5} = - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}$$
$$z_{6} = \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}$$
$$z_{7} = - \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} - \frac{\sqrt{2} i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}$$
$$z_{8} = - \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} - \frac{\sqrt{2} i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}$$
hacemos cambio inverso
$$z = x$$
$$x = z$$
Entonces la respuesta definitiva es:
$$x_{1} = - \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}$$
$$x_{2} = \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} - i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}$$
$$x_{3} = - \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} - i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}$$
$$x_{4} = \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} + i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}$$
$$x_{5} = - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}$$
$$x_{6} = \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}$$
$$x_{7} = - \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} - \frac{\sqrt{2} i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}$$
$$x_{8} = - \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} - \frac{\sqrt{2} i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}$$
___________ ___________
/ ___ / ___
/ 1 \/ 2 / 1 \/ 2
x1 = - / - - ----- + I* / - + -----
\/ 2 4 \/ 2 4
$$x_{1} = - \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}$$
___________ ___________
/ ___ / ___
/ 1 \/ 2 / 1 \/ 2
x2 = / - - ----- - I* / - + -----
\/ 2 4 \/ 2 4
$$x_{2} = \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} - i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}$$
___________ ___________
/ ___ / ___
/ 1 \/ 2 / 1 \/ 2
x3 = - / - + ----- - I* / - - -----
\/ 2 4 \/ 2 4
$$x_{3} = - \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} - i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}$$
___________ ___________
/ ___ / ___
/ 1 \/ 2 / 1 \/ 2
x4 = / - + ----- + I* / - - -----
\/ 2 4 \/ 2 4
$$x_{4} = \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} + i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}$$
/ ___________ ___________\ ___________ ___________
| / ___ / ___ | / ___ / ___
| ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2
|\/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - + ----- \/ 2 * / - - -----
| \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4
x5 = I*|---------------------- + ----------------------| + ---------------------- - ----------------------
\ 2 2 / 2 2
$$x_{5} = - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + i \left(\frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}\right)$$
/ ___________ ___________\ ___________ ___________
| / ___ / ___ | / ___ / ___
| ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2
|\/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - - ----- \/ 2 * / - + -----
| \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4
x6 = I*|---------------------- - ----------------------| + ---------------------- + ----------------------
\ 2 2 / 2 2
$$x_{6} = \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}\right)$$
/ ___________ ___________\ ___________ ___________
| / ___ / ___ | / ___ / ___
| ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2
|\/ 2 * / - + ----- \/ 2 * / - - ----- | \/ 2 * / - - ----- \/ 2 * / - + -----
| \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4
x7 = I*|---------------------- - ----------------------| - ---------------------- - ----------------------
\ 2 2 / 2 2
$$x_{7} = - \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}\right)$$
/ ___________ ___________\ ___________ ___________
| / ___ / ___ | / ___ / ___
| ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2
| \/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - - ----- \/ 2 * / - + -----
| \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4
x8 = I*|- ---------------------- - ----------------------| + ---------------------- - ----------------------
\ 2 2 / 2 2
$$x_{8} = - \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}\right)$$
x8 = -sqrt(2)*sqrt(sqrt(2)/4 + 1/2)/2 + sqrt(2)*sqrt(1/2 - sqrt(2)/4)/2 + i*(-sqrt(2)*sqrt(sqrt(2)/4 + 1/2)/2 - sqrt(2)*sqrt(1/2 - sqrt(2)/4)/2)
Suma y producto de raíces
[src]
/ ___________ ___________\ ___________ ___________ / ___________ ___________\ ___________ ___________ / ___________ ___________\ ___________ ___________ / ___________ ___________\ ___________ ___________
| / ___ / ___ | / ___ / ___ | / ___ / ___ | / ___ / ___ | / ___ / ___ | / ___ / ___ | / ___ / ___ | / ___ / ___
___________ ___________ ___________ ___________ ___________ ___________ ___________ ___________ | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2
/ ___ / ___ / ___ / ___ / ___ / ___ / ___ / ___ |\/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - + ----- \/ 2 * / - - ----- |\/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - - ----- \/ 2 * / - + ----- |\/ 2 * / - + ----- \/ 2 * / - - ----- | \/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - - ----- \/ 2 * / - + -----
/ 1 \/ 2 / 1 \/ 2 / 1 \/ 2 / 1 \/ 2 / 1 \/ 2 / 1 \/ 2 / 1 \/ 2 / 1 \/ 2 | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4
- / - - ----- + I* / - + ----- + / - - ----- - I* / - + ----- + - / - + ----- - I* / - - ----- + / - + ----- + I* / - - ----- + I*|---------------------- + ----------------------| + ---------------------- - ---------------------- + I*|---------------------- - ----------------------| + ---------------------- + ---------------------- + I*|---------------------- - ----------------------| - ---------------------- - ---------------------- + I*|- ---------------------- - ----------------------| + ---------------------- - ----------------------
\/ 2 4 \/ 2 4 \/ 2 4 \/ 2 4 \/ 2 4 \/ 2 4 \/ 2 4 \/ 2 4 \ 2 2 / 2 2 \ 2 2 / 2 2 \ 2 2 / 2 2 \ 2 2 / 2 2
$$\left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}\right)\right) + \left(\left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}\right)\right) + \left(\left(\frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}\right)\right) + \left(\left(\left(\left(- \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} - i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}\right) + \left(\left(\sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} - i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}\right) + \left(- \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}\right)\right)\right) + \left(\sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} + i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}\right)\right) + \left(- \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + i \left(\frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}\right)\right)\right)\right)\right)$$
/ ___________ ___________\ / ___________ ___________\ / ___________ ___________\ / ___________ ___________\
| / ___ / ___ | | / ___ / ___ | | / ___ / ___ | | / ___ / ___ |
| ___ / 1 \/ 2 ___ / 1 \/ 2 | | ___ / 1 \/ 2 ___ / 1 \/ 2 | | ___ / 1 \/ 2 ___ / 1 \/ 2 | | ___ / 1 \/ 2 ___ / 1 \/ 2 |
|\/ 2 * / - - ----- \/ 2 * / - + ----- | |\/ 2 * / - - ----- \/ 2 * / - + ----- | |\/ 2 * / - + ----- \/ 2 * / - - ----- | | \/ 2 * / - - ----- \/ 2 * / - + ----- |
| \/ 2 4 \/ 2 4 | | \/ 2 4 \/ 2 4 | | \/ 2 4 \/ 2 4 | | \/ 2 4 \/ 2 4 |
I*|---------------------- + ----------------------| + I*|---------------------- - ----------------------| + I*|---------------------- - ----------------------| + I*|- ---------------------- - ----------------------|
\ 2 2 / \ 2 2 / \ 2 2 / \ 2 2 /
$$i \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}\right) + i \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}\right) + i \left(- \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}\right) + i \left(\frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}\right)$$
/ / ___________ ___________\ ___________ ___________\ / / ___________ ___________\ ___________ ___________\ / / ___________ ___________\ ___________ ___________\ / / ___________ ___________\ ___________ ___________\
| | / ___ / ___ | / ___ / ___ | | | / ___ / ___ | / ___ / ___ | | | / ___ / ___ | / ___ / ___ | | | / ___ / ___ | / ___ / ___ |
/ ___________ ___________\ / ___________ ___________\ / ___________ ___________\ / ___________ ___________\ | | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | | | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | | | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 | | | ___ / 1 \/ 2 ___ / 1 \/ 2 | ___ / 1 \/ 2 ___ / 1 \/ 2 |
| / ___ / ___ | | / ___ / ___ | | / ___ / ___ | | / ___ / ___ | | |\/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - + ----- \/ 2 * / - - ----- | | |\/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - - ----- \/ 2 * / - + ----- | | |\/ 2 * / - + ----- \/ 2 * / - - ----- | \/ 2 * / - - ----- \/ 2 * / - + ----- | | | \/ 2 * / - - ----- \/ 2 * / - + ----- | \/ 2 * / - - ----- \/ 2 * / - + ----- |
| / 1 \/ 2 / 1 \/ 2 | | / 1 \/ 2 / 1 \/ 2 | | / 1 \/ 2 / 1 \/ 2 | | / 1 \/ 2 / 1 \/ 2 | | | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | | | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | | | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 | | | \/ 2 4 \/ 2 4 | \/ 2 4 \/ 2 4 |
|- / - - ----- + I* / - + ----- |*| / - - ----- - I* / - + ----- |*|- / - + ----- - I* / - - ----- |*| / - + ----- + I* / - - ----- |*|I*|---------------------- + ----------------------| + ---------------------- - ----------------------|*|I*|---------------------- - ----------------------| + ---------------------- + ----------------------|*|I*|---------------------- - ----------------------| - ---------------------- - ----------------------|*|I*|- ---------------------- - ----------------------| + ---------------------- - ----------------------|
\ \/ 2 4 \/ 2 4 / \\/ 2 4 \/ 2 4 / \ \/ 2 4 \/ 2 4 / \\/ 2 4 \/ 2 4 / \ \ 2 2 / 2 2 / \ \ 2 2 / 2 2 / \ \ 2 2 / 2 2 / \ \ 2 2 / 2 2 /
$$\left(- \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} + i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}\right) \left(\sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}} - i \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}\right) \left(- \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} - i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}\right) \left(\sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}} + i \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}\right) \left(- \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + i \left(\frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}\right)\right) \left(\frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}\right)\right) \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2}\right)\right) \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} + \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2} + i \left(- \frac{\sqrt{2} \sqrt{\frac{\sqrt{2}}{4} + \frac{1}{2}}}{2} - \frac{\sqrt{2} \sqrt{\frac{1}{2} - \frac{\sqrt{2}}{4}}}{2}\right)\right)$$
$$1$$
x1 = -0.38268343236509 + 0.923879532511287*i
x2 = 0.38268343236509 - 0.923879532511287*i
x3 = 0.923879532511287 + 0.38268343236509*i
x4 = -0.923879532511287 + 0.38268343236509*i
x5 = 0.923879532511287 - 0.38268343236509*i
x6 = -0.38268343236509 - 0.923879532511287*i
x7 = 0.38268343236509 + 0.923879532511287*i
x8 = -0.923879532511287 - 0.38268343236509*i
x8 = -0.923879532511287 - 0.38268343236509*i