dd
iiiii: zapisz podane liczby w postaci trygonometrycznej
a)z=7+7i
b)sinα+icosα
undefined
8 mar 21:01
Janek191:
z = 7 + 7 i
I z I =
√72 + 72 =
√49*2 = 7
√2
więc
| | π | | π | |
z = 7 √2*( cos |
| )+ i sin |
| ) |
| | 4 | | 4 | |
8 mar 21:04
Janek191:
| | π | | π | |
z = 7√2*( cos |
| + i sin |
| ) |
| | 4 | | 4 | |
8 mar 21:05
Mila:
Postać trygonometryczna:
| | π | | π | |
z=sinα+icosα=cos( |
| −α)+i sin( |
| −α) |
| | 2 | | 2 | |
|z|=1
8 mar 22:58