© 2009 -2011 tutorco.com 1 Q1. The argument of the number -1+i is: A. 180° B. 135° C. 90° D. 45° Q2. If z = a + ib is a complex number, then: A. B. C. D. PRE CALCULUS TOPIC: COMPLEX NUMBERS Pre/Cal/8/Pre © 2009 -2011 tutorco.com 2 Q3. The absolute value of the complex number z = a+ib is: A. a+b B. C. D. a2+b2 Q4. The reciprocal of the number i is: A. -i B. 1 C. -1 D. i Q5. If z and w are two complex numbers, then A. B. C. D.
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