1 (a + b)(1 + i) Show that where a, b are reals. Hence, (a – bi) (a + bi) a2 + b2 1 find the value of a if (а — 3і) (a +3i) |5 – 5i|"

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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1
(a + b)(1 + i)
Show that
where a, b are reals. Hence,
(a – bi)
(a + bi)
a2 + b2
1
find the value of a if
(а — 3і)
(a +3i)
|5 – 5i|"
Transcribed Image Text:1 (a + b)(1 + i) Show that where a, b are reals. Hence, (a – bi) (a + bi) a2 + b2 1 find the value of a if (а — 3і) (a +3i) |5 – 5i|"
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