[7(cos(200)+isin(200))]3

Lösung

[7 (cos (20 0^{\circ}) + i sin (20 0^{\circ}))] 3

- 19.73354 \dots - 7.18242 \dots i

Schritte zur Lösung

[7 (cos (20 0^{\circ}) + i sin (20 0^{\circ}))] \cdot 3

Vereinfache zur Dezimalform

= - 19.73354 \dots - 7.18242 \dots i

sin (arcsin (\frac{8}{17}) + arccos (- \frac{5}{13}))

arctan (\frac{4}{15})

arccos (0.90096)

sin (\frac{π}{2})

arctan (0.577)