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[The Delta Math Review Assignment counts as a 50 pt Major Assessment.] This test was based on the learning objectives of each lesson in this unit and reflects the practice test. Students should note that the functions are identical except for their domains. MAT 160 (College Algebra) Your name: Practice Test 2 1. Problem 1-2 Evaluate and write in standard form \( \dfrac{1-i}{2-i} \) , where i is the imaginary unit. Record your score out of 10. Detailed Solution. Step-by-step solutions to all your Algebra 2 homework questions - Slader Geometry Home/Calendar. Discriminants . A2.1.1 Define complex numbers and perform basic operations with them. 40(t + 3) ... Test names and other trademarks are the property of the respective trademark holds. 7 b. i, or the principal square root of -1 (√-1)... -not a real number, Numbers that can be found on number line. Do two math problems for SAT practice. 3.3 Solve quadratic equations using square roots. 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UNIT 6.1 - COMPLEX NUMBERS 1 - DEFINITIONS AND ALGEBRA 6.1.1 The definition of a complex number 6.1.2 The algebra of complex numbers 6.1.3 Exercises 6.1.4 Answers to exercises (8 pages) UNIT 6.2 - COMPLEX NUMBERS 2 - THE ARGAND DIAGRAM 6.2.1 Introduction 6.2.2 Graphical addition and subtraction 6.2.3 Multiplication by j 6.2.4 Modulus and argument Complex numbers are built on the idea that we can define the number i (called "the imaginary unit") to be the principal square root of -1, or a solution to the equation x²=-1. Detailed Solution. Here is a set of practice problems to accompany the Complex Numbers< section of the Preliminaries chapter of the notes for Paul Dawkins Algebra course at Lamar University. View Unit 2 Part 1 Practice Test.pdf from ENGLISH 101 at Madison Highland Prep. Algebra-answer.com brings invaluable strategies on syllabus, math and linear algebra and other algebra subject areas. Review . 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