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Algebra 2 Trig Name__________________________________
5.4 Imaginary and Complex Numbers
I. Imaginary Numbers
Let i =
So 2i =
3i =
4i =
5i =
II. Complex Numbers: Real vs. Imaginary
III. Operations & Simplifying with Complex Numbers
a. Addition & Subtraction
1. (8+4i) + (2 – 6i) = 2. (7+3i) – (5+8i) =
b. Multiplication
1. (2 – 3i)(4 + 5i) = 2. (5i)(3i)(-4i) =
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