Moivre 2

Find the cube roots of 125(cos 288° + i sin 288°).


Correct answer:

r =  5
α1 =  96 °
α2 =  216 °
α3 =  336 °

Step-by-step explanation:

r=1253=5
α1=288/3+0 360/3=96°
α2=288/3+1 360/3=216°
α3=288/3+2360/3=336° z1=5(cos96+isin96) z2=5(cos216°+isin216°) z3=5(cos336°+isin336°)



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