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Mathematics 21 Online
OpenStudy (anonymous):

PLEASE HELP. PRE-CAL AND TRIG!!! Convert the polar representation of this complex number into its rectangular form: z = 4(cos120 + isin120) A. (2 sqrt3, -2) B. (-2, 2 sqrt3) C. (-4, 4 sqrt3) D. (4, 4 sqrt2)

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