Z = 4 - 4i.
tanAr = -4/4 = -1
Ar = -45o. = Reference angle.
A = -45 + 360 = 315o.
Z = X/cosA = 4/cos315 = 5.66 @ 315o or
(5.66,315).
NOTE: 315o = 7pi/4 Radians.
Write the following complex number in polar form: z = 4 − 4i
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