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Lake Zurich High School
Complex Numbers By: Jeffrey Bivin Lake Zurich High School Last Updated: October 31, 2005
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The Imaginary Unit Imaginary Numbers Jeff Bivin -- LZHS
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More about Imaginary Numbers
Jeff Bivin -- LZHS
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This is fun! Jeff Bivin -- LZHS
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Complex Numbers a + bi For any real numbers a and b, the number
is a complex number. Examples: Jeff Bivin -- LZHS
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Complex Number System Imaginary Real Rational Irrational Integers ..., -3, -2, -1 Whole Natural 1, 2, 3, 4, .... Jeff Bivin -- LZHS
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Addition & Subtraction
Example 1 Example 2 Example 3 Jeff Bivin -- LZHS
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Multiplication Example 1 Example 2 Jeff Bivin -- LZHS
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Graphing Complex Numbers
imaginary real Jeff Bivin -- LZHS
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Solve using the Quadratic Formula
x2 + 6x + 13 = 0 a = 1 b = 6 c = 13 Jeff Bivin -- LZHS
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Solve using the Quadratic Formula
3x2 + 7x + 5 = 0 a = 3 b = 7 c = 5 Jeff Bivin -- LZHS
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Solve using the Quadratic Formula
3x2 - 2x + 5 = 0 a = 3 b = -2 c = 5 Jeff Bivin -- LZHS
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