For -343, (a) find all cube roots of the complex number. Write answers in trigonometric form. (b) Graph each cube root as a vector in the complex plane. (a) Choose the correct answer below. O 343(cos 30+isin 30), 343(cos 90+isin 90°),343(cos 180° +isin 180") O 343(cos 60+isin 60), 343(cos 180+isin 180"), 343(cos 300*+/sin 300°) O 7(cos 60°+isin 60), 7(cos 180°+isin 180), 7(cos 300+isin 300") O 7(cos 60+isin 60), 7(cos 120"+isin 120°), 7(cos 180+isin 180°) (b) Choose the correct graph below OA. OB. O C. OD.
For -343, (a) find all cube roots of the complex number. Write answers in trigonometric form. (b) Graph each cube root as a vector in the complex plane. (a) Choose the correct answer below. O 343(cos 30+isin 30), 343(cos 90+isin 90°),343(cos 180° +isin 180") O 343(cos 60+isin 60), 343(cos 180+isin 180"), 343(cos 300*+/sin 300°) O 7(cos 60°+isin 60), 7(cos 180°+isin 180), 7(cos 300+isin 300") O 7(cos 60+isin 60), 7(cos 120"+isin 120°), 7(cos 180+isin 180°) (b) Choose the correct graph below OA. OB. O C. OD.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:For-343, (a) find all cube roots of the complex number. Write answers in trigonometric form. (b) Graph each cube root as a vector in the complex plane.
(a) Choose the correct answer below.
O 343(cos 30° +isin 30°), 343(cos 90° +isin 90°),343(cos 180° +isin 180")
O 343(cos 60+isin 60), 343(cos 180° +isin 180), 343(cos 300*+/sin 300°)
O 7(cos 60°+isin 60"), 7(cos 180°+isin 180), 7(cos 300+isin 300°)
O 7(cos 60+isin 60°), 7(cos 120° +isin 120°), 7(cos 180+isin 180°)
(b) Choose the correct graph below.
OA.
5
OB.
OC.
OD.
Q
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