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a. 5+ j4 +3-j7 b. (2j – 4)(5+j7) c. (5-j2) / (2j-5)

a. 5+ j4 +3-j7 b. (2j – 4)(5+j7) c. (5-j2) / (2j-5)

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 28EQ
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Activity 4: To protect the network from cyber-attacks, some advanced encrypting techniques are employed. In one or more stages of encrypting and decrypting the signals, the following operations should be computed: 4-1) Compute the following arithmetic operations that are used in different stages of the previously explained engineering problem: a. 5+ j4 +3- j7 b. (2j – 4)(5+j7) c. (5-j2) / (2j-5) HT Page 6 of 8 حسين التقنية Al Hussein Technic d. (6j-7) / (3j-12) e. (8ei4)(3ej8) f. (2430)/ (4260) 12ej5 g. 324 h. (2ei4)(24) i. (5(cos(20) + jsin(20)))10 j. (5 – j2)105 Hint: Use de Moivre's Theorem Hint: Use de Moivre's Theorem
Transcribed Image Text:Activity 4: To protect the network from cyber-attacks, some advanced encrypting techniques are employed. In one or more stages of encrypting and decrypting the signals, the following operations should be computed: 4-1) Compute the following arithmetic operations that are used in different stages of the previously explained engineering problem: a. 5+ j4 +3- j7 b. (2j – 4)(5+j7) c. (5-j2) / (2j-5) HT Page 6 of 8 حسين التقنية Al Hussein Technic d. (6j-7) / (3j-12) e. (8ei4)(3ej8) f. (2430)/ (4260) 12ej5 g. 324 h. (2ei4)(24) i. (5(cos(20) + jsin(20)))10 j. (5 – j2)105 Hint: Use de Moivre's Theorem Hint: Use de Moivre's Theorem
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