The number z = −2 + 2i has modulus |z| = 2√2 and argument arg z =(5/4)π. But I have no earthly idea how they get arg z?, I know its with tangent, but how do you do this by hand, without a calculator?
The number z = −2 + 2i has modulus |z| = 2√2 and argument arg z =(5/4)π. But I have no earthly idea how they get arg z?, I know its with tangent, but how do you do this by hand, without a calculator?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 44RE
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The number z = −2 + 2i has modulus |z| = 2√2 and argument arg z =(5/4)π. But I have no earthly idea how they get arg z?, I know its with tangent, but how do you do this by hand, without a calculator?
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