Apply the parallelogram law to get the sum and difference of the following complex numbers. For verification of the results, direct addition and subtraction can be used. a) u = 2 + 3i, v = 1 − 2i  b) u = 4 + 7i, v = −2 − 3i c) u = −3, v = −3 − 4i d) u = 4 + 3i, v = 3 + 4i

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.5: Trigonometric Form For Complex Numbers
Problem 72E
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Apply the parallelogram law to get the sum and difference of the following complex numbers. For verification of the results, direct addition and subtraction can be used.

a) u = 2 + 3i, v = 1 − 2i 

b) u = 4 + 7i, v = −2 − 3i

c) u = −3, v = −3 − 4i

d) u = 4 + 3i, v = 3 + 4i

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