| 1+iz | ||
Im | =1 | |
| 1−iz |
| 1+i(x+iy) | |
=po uporządkowaniu | |
| 1−i(x+iy) |
| (1−y)+ix | ||
= | = mnożę licznik i mianownik przez [(1+y)+ix] | |
| (1+y)−ix |
| [(1−y)+ix]*[(1+y)+ix] | ||
= | = wymnóż i uporządkuj licznik | |
| (1+y)2−i2x2 |
| 1−x2−y2+2ix | ||
= | ||
| (1+y)2+x2 |
| 1−x2−y2+2ix | 2x | |||
Im( | )= | |||
| (1+y)2+x2 | (1+y)2+x2 |
| 2x | |
=1⇔(1+y)2+x2=2x⇔ | |
| (1+y)2+x2 |