Question

represente na forma algébrica -2raiz3-2i

Answer 1

Oi Liam

forma algebrica

z = -2√3 - 2i 

a = -2√3 , b = -2i

|z| = √(a² + b²) = √(12 + 4) = √16 = 4

tg(φ) = b/a = -2/(-2√3) = 1/√3 ⇒ φ = 210° no 3° quadrante

z = 4*(cos(210°) + isen(210°))