1-5 - 1­5 November 18, 2010 1­5 Complex Numbers Real...

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Unformatted text preview: 1­5 November 18, 2010 1­5 Complex Numbers Real numbers Imaginary numbers The i's Rational Irrational √2, √3, π Integers (...­1,0,1,...) Whole (0,1,2,...) Natural (Counting) (1,2,...) Sep 2­12:20 PM Complex Numbers 2 √­1 = i and i = ­1 Ex. Simplify √­3 * √­6 Ex. √­25 Ex. √­7 Sep 2­12:27 PM 1 1­5 November 18, 2010 a + bi or a ­ bi are complex numbers a is the real part and bi is the imaginary part. Ex. (2 + 3i) + (4 ­ 4i) Ex. (1 + 5i) ­ (3 + 7i) Ex. (3 + 5i)(2 ­ 4i) Ex. (1 + 2i)/(1 ­ 3i) Ex. i23 Sep 2­1:53 PM h.w. p.28 class exercises 1­11 all written exercises p. 28 evens 2­34 Sep 2­1:58 PM 2 ...
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