21 Let z1 = 1+ 5i and z2 = 3+2i, and let z = 22 (a) Find |z| without finding z. -1 (b) Find tan(tan-5 – tan (c) Hence write z in the form x + iy, where x and y are real. ), and hence find arg z without finding z.
21 Let z1 = 1+ 5i and z2 = 3+2i, and let z = 22 (a) Find |z| without finding z. -1 (b) Find tan(tan-5 – tan (c) Hence write z in the form x + iy, where x and y are real. ), and hence find arg z without finding z.
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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Transcribed Image Text:21
Let z1 = 1+5i and z2 = 3+ 2i, and let z =
22
(a) Find z| without finding z.
(b) Find tan(tan5 – tan- 2), and hence find arg z without finding z.
3
(c) Hence write z in the form x + iy, where x and y are real.
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