Simplify the following expressions: (a) (2+6i)+(9-2i) (b) (8-3i)-(1+ 5i) (c) 3(7–3i)+i(2 +2i) (d) (3+5i)(1– 4i)
Simplify the following expressions: (a) (2+6i)+(9-2i) (b) (8-3i)-(1+ 5i) (c) 3(7–3i)+i(2 +2i) (d) (3+5i)(1– 4i)
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:Activity 5
Simplify the following expressions:
(a) (2+6i)+(9– 2i) l
(c) 3(7–3i)+i(2+2i)
(b) (8–3i)-(1+ 5i)
(d) (3+5i)(1–4i)
(e) (5+12i)(6+7)(S)+ () () (2 +i)*
(f) (2+i)²
.3
(g) i
(i) (1-i)³
(k) (2+i)*+(2-i)*
(8-) (h)
(1) (1+i)² +(1-i)²
(1) (a+ib)(a-ib)
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