(1+2i)(3-i) = ? If i =V-1 then -3+4i O 1-7i O 0.2 - 1.4i O 0.2 + 1.4i O 1.4 - 0.2i

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.1: Verifying Trigonometric Identities
Problem 3E
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(1+2i)(3 i)
=?
If i =V-1 then
3+4i
O 1- 7i
O 0.2-1.4i
O 0.2 + 1.4i
01.4-0.2i
Transcribed Image Text:(1+2i)(3 i) =? If i =V-1 then 3+4i O 1- 7i O 0.2-1.4i O 0.2 + 1.4i 01.4-0.2i
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