Разложение на множители
[src] / 4/7 6/7 /pi\ 4/7 6/7 /pi\\ / 4/7 6/7 2/pi\ 4/7 6/7 2/pi\\ / 4/7 6/7 2/pi\ 4/7 6/7 2/pi\ 4/7 6/7 /pi\ /pi\\ / 4/7 6/7 /pi\ /2*pi\ 4/7 6/7 /pi\ /2*pi\ 4/7 6/7 /pi\ /2*pi\ 4/7 6/7 /2*pi\ /pi\\ / 4/7 6/7 /pi\ /2*pi\ 4/7 6/7 /pi\ /2*pi\ 4/7 6/7 /pi\ /2*pi\ 4/7 6/7 /2*pi\ /pi\\ / 4/7 6/7 /pi\ /3*pi\ 4/7 6/7 /pi\ /3*pi\ 4/7 6/7 /3*pi\ /pi\ 4/7 6/7 /pi\ /3*pi\\ / 4/7 6/7 /pi\ /3*pi\ 4/7 6/7 /pi\ /3*pi\ 4/7 6/7 /pi\ /3*pi\ 4/7 6/7 /3*pi\ /pi\\
| 2 *5 *cos|--| I*2 *5 *sin|--|| | 2 *5 *cos |--| 2 *5 *sin |--|| | 2 *5 *cos |--| 2 *5 *sin |--| 2*I*2 *5 *cos|--|*sin|--|| | 2 *5 *sin|--|*sin|----| 2 *5 *cos|--|*cos|----| I*2 *5 *cos|--|*sin|----| I*2 *5 *cos|----|*sin|--|| | 2 *5 *cos|--|*cos|----| 2 *5 *sin|--|*sin|----| I*2 *5 *cos|--|*sin|----| I*2 *5 *cos|----|*sin|--|| | 2 *5 *cos|--|*cos|----| 2 *5 *sin|--|*sin|----| I*2 *5 *cos|----|*sin|--| I*2 *5 *cos|--|*sin|----|| | 2 *5 *cos|--|*cos|----| 2 *5 *sin|--|*sin|----| I*2 *5 *cos|--|*sin|----| I*2 *5 *cos|----|*sin|--||
| \7 / \7 /| | \7 / \7 /| | \7 / \7 / \7 / \7 /| | \7 / \ 7 / \7 / \ 7 / \7 / \ 7 / \ 7 / \7 /| | \7 / \ 7 / \7 / \ 7 / \7 / \ 7 / \ 7 / \7 /| | \7 / \ 7 / \7 / \ 7 / \ 7 / \7 / \7 / \ 7 /| | \7 / \ 7 / \7 / \ 7 / \7 / \ 7 / \ 7 / \7 /|
x*|x + - ----------------- - -------------------|*|x + ------------------ + ------------------|*|x + ------------------ - ------------------ + -----------------------------|*|x + --------------------------- - --------------------------- - ----------------------------- - -----------------------------|*|x + - --------------------------- - --------------------------- + ----------------------------- - -----------------------------|*|x + --------------------------- + --------------------------- + ----------------------------- - -----------------------------|*|x + --------------------------- - --------------------------- + ----------------------------- + -----------------------------|
\ 5 5 / \ 5 5 / \ 5 5 5 / \ 5 5 5 5 / \ 5 5 5 5 / \ 5 5 5 5 / \ 5 5 5 5 /
$$x \left(x + \left(- \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \cos{\left(\frac{\pi}{7} \right)}}{5} - \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{\pi}{7} \right)}}{5}\right)\right) \left(x + \left(\frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \sin^{2}{\left(\frac{\pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \cos^{2}{\left(\frac{\pi}{7} \right)}}{5}\right)\right) \left(x + \left(- \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \sin^{2}{\left(\frac{\pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \cos^{2}{\left(\frac{\pi}{7} \right)}}{5} + \frac{2 \cdot 2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{\pi}{7} \right)}}{5}\right)\right) \left(x + \left(- \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \cos{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{2 \pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \sin{\left(\frac{\pi}{7} \right)} \sin{\left(\frac{2 \pi}{7} \right)}}{5} - \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{2 \pi}{7} \right)} \cos{\left(\frac{\pi}{7} \right)}}{5} - \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{2 \pi}{7} \right)}}{5}\right)\right) \left(x + \left(- \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \cos{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{2 \pi}{7} \right)}}{5} - \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \sin{\left(\frac{\pi}{7} \right)} \sin{\left(\frac{2 \pi}{7} \right)}}{5} - \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{2 \pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{2 \pi}{7} \right)} \cos{\left(\frac{\pi}{7} \right)}}{5}\right)\right) \left(x + \left(\frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \cos{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{3 \pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \sin{\left(\frac{\pi}{7} \right)} \sin{\left(\frac{3 \pi}{7} \right)}}{5} - \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{3 \pi}{7} \right)} \cos{\left(\frac{\pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{3 \pi}{7} \right)}}{5}\right)\right) \left(x + \left(- \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \sin{\left(\frac{\pi}{7} \right)} \sin{\left(\frac{3 \pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} \cos{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{3 \pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{\pi}{7} \right)} \cos{\left(\frac{3 \pi}{7} \right)}}{5} + \frac{2^{\frac{4}{7}} \cdot 5^{\frac{6}{7}} i \sin{\left(\frac{3 \pi}{7} \right)} \cos{\left(\frac{\pi}{7} \right)}}{5}\right)\right)$$
