1382390623_291__232a5-instructor-sols (1)

# Marni mishna department of mathematics simon fraser

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Unformatted text preview: limit laws (−i)(2 + 3i) + 3 14 Dec 10 Presentations Asst #3 Due 1 = (−i)(2 + 3i) + 3 1 = −2i + 3 + 3 1 = 6 − 2i 6 + 2i = (6 − 2i)(6 + 2i) Dr. Marni MISHNA, Department of Mathematics, SIMON FRASER UNIVERSITY 6 + 2i Version of: 11-Dec-09 = 40 3 1 = +i 20 20 11 18 IX.1 Limit Laws and Comb √ −6± √ 62 −4(3)(2) A3 (a): The solutions are = −6± 12 = −1 ± 12/36 = −1 ± 1/3 6 6 √2 −6± 6 −4(3)(3) −6±0 A3 (b): We have = = −1, so the only solution is −1. You can also factor 6 6 3x3 + 6x + 3 = 3(x + 1)2 to see that the only solution is −1. √ A3 (c): The solutions are (−1)(1/3) = −1 ± i 1/3 C EDRIC C HAUVE , FALL 2013 −6± 62 −4(3)(4) 6 = √ −6± −12 6 = −1 ± −12/36 = −1 ± −1/3 = −1 ± 1...
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