(i) [2(cos 0° + i sin 0°)][4(cos 90° +i sin 90°)] (ii) [2(cos 210° + i sin 210°)][4(cos 120° + i sin 120°)] 9(cos 90° +i sin 90°), (iii) 3(cos 45° + i sin 45°)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question
Express the following in polar form.
(i) [2(cos 0° + i sin 0°)][4(cos 90° +i sin 90°)]
(ii) [2(cos 210° +i sin 210°)][4(cos 120° + i sin 120°)]
9(cos 90° +i sin 90°).
(ii)
3(cos 45° + i sin 45°)
Transcribed Image Text:(i) [2(cos 0° + i sin 0°)][4(cos 90° +i sin 90°)] (ii) [2(cos 210° +i sin 210°)][4(cos 120° + i sin 120°)] 9(cos 90° +i sin 90°). (ii) 3(cos 45° + i sin 45°)
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