Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall. Section 1.3 Complex Numbers Quadratic Equations in the Complex Number System
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.
a) (3 – 2i) + (5 – 4i)b) (3 – 2i) – (5 – 4i) (3+5) + [(–2) +(– 4)] i 8–6 i (3 – 5) + [(–2) –(– 4)] i –2+2 i
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall. (3 – 2i) (5 – 4i) 3(5) +3(– 4i)+(– 2i)(5)+(– 2i)(– 4i) 15 – 12i – 10i + 8i 2 = 15 – 22i +8(–1)= 7 – 22i
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.