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Unformatted text preview: MAC 1114 Module Test 10 Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Perform the indicated operations. Simplify the answer. 1)- 11 · - 11 A) 11i B) 11 C)- 11i D)- 11 Answer: D Objective: (8.1) Multiply/Divide Expression with Negative Radicands In work with alternating current, complex numbers are used to describe current I, voltage E, and impedance Z. These three quantities are related by the equation E = IZ. Solve the equation E = IZ for the missing variable. 2) I = 7 + 2i, Z = 5 + 4i A) E = 27 + 38i B) E = 35 + 46i C) E = 35 + 8i D) E = 43 + 38i Answer: A Objective: (8.1) Solve Apps: Current, Voltage, Impedance Find the quotient. Write the answer in standard form. 3) 8 + 4i 6- 9i A) 4 39 + 32 39 i B) 28 13 + 16 13 i C)- 4 45 + 32 45 i D)- 28 15 + 32 45 i Answer: A Objective: (8.1) Divide Complex Numbers Identify the number as real, complex, pure imaginary, or none of these. More than one of these descriptions may apply. 4)- 2 A) Complex B) Real, complex C) Complex, pure imaginary D) None of these Answer: C Objective: (8.1) Identify Number as...
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This note was uploaded on 10/18/2011 for the course MAC 1114 taught by Professor Russel during the Summer '08 term at Valencia.
- Summer '08