1. Show that the absolute value of Re(z) + the absolute value of Im(z) is less or equal to root of 2 absolute value of z for any z is in complex number. 2. Under what circumstances does the absolute value of z + w= the absolute value of z + the absolute value of w where z;w in C. 3. Determine if the following is true or false with reason: Arg(z)=-Arg(z) if z is not real number, where Arg(z) denotes the principal argument of z.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.1: Real Numbers
Problem 35E
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1. Show that the absolute value of Re(z) + the absolute value of Im(z) is less or equal to root of 2 absolute value of z for any z is in complex number.

2. Under what circumstances does the absolute value of z + w= the absolute value of z + the absolute value of w where z;w in C.

3. Determine if the following is true or false with reason:
Arg(z)=-Arg(z) if z is not real number, where Arg(z) denotes the principal argument of z.

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