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8. Perform the following operations: (a) (50 260°)(4 280°) = (b) (0.8 -10°)(3 230°)(-4 220°) = = (c) (5+j8)(4- j2) =

8. Perform the following operations: (a) (50 260°)(4 280°) = (b) (0.8 -10°)(3 230°)(-4 220°) = = (c) (5+j8)(4- j2) =

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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8. Perform the following operations: (a) \( (50 \angle 60^\circ)(4 \angle 80^\circ) = \) ______________ (b) \( (0.8 \angle -10^\circ)(3 \angle 30^\circ)(-4 \angle 20^\circ) = \) ______________ (c) \( (5 + j8)(4 - j2) = \) ______________ (d) \( (48 \angle 20^\circ)(10 - j1) = \) ______________ (e) \( (0.9 - j0.5)(40 + j10) = \) ______________ (f) \( (4000 \angle 40^\circ)(2000 \angle -20^\circ)(1000 + j1000) = \) ______________
Transcribed Image Text:8. Perform the following operations: (a) \( (50 \angle 60^\circ)(4 \angle 80^\circ) = \) ______________ (b) \( (0.8 \angle -10^\circ)(3 \angle 30^\circ)(-4 \angle 20^\circ) = \) ______________ (c) \( (5 + j8)(4 - j2) = \) ______________ (d) \( (48 \angle 20^\circ)(10 - j1) = \) ______________ (e) \( (0.9 - j0.5)(40 + j10) = \) ______________ (f) \( (4000 \angle 40^\circ)(2000 \angle -20^\circ)(1000 + j1000) = \) ______________
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8. (a). Given,

               open parentheses 50 angle 60 degree close parentheses open parentheses 4 angle 80 degree close parentheses equals

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