Задача 72177 2([m]cos 12°[/m]+i [m]sin 12°[/m]) *...

62aaac79225ec1501a9067b6

28.06.2023 08:38:22

2([m]cos 12°[/m]+i [m]sin 12°[/m]) * 4([m]cos 37°[/m]+i [m]sin 37°[/m])

5f3ea7e3faf909182968ddd9

28.06.2023 13:57:01

[m]2(cos12°+i sin12°)\cdot 4 (cos37°+i sin37°) =2e^{12 °\cdot i}\cdot 4e^{37 °\cdot i}=2\cdot 4\cdot e^{12 °\cdot i+37 °\cdot i}=8\cdot e^{49 °\cdot i}=8\cdot (cos49 ° +isin49 °)[/m]