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Questions and Answers
What is the conjugate of a complex number $z = a + ib$?
What is the conjugate of a complex number $z = a + ib$?
- $-a + ib$
- $a + ib$
- $-a - ib$
- $a - ib$ (correct)
What is the multiplicative identity of a complex number?
What is the multiplicative identity of a complex number?
- 0 + i1
- 1 + i1
- 1 + i0 (correct)
- 0 + i0
What is the polar form of a complex number $z = a + ib$?
What is the polar form of a complex number $z = a + ib$?
- $z = r (cos\theta - i sin\theta)$
- $z = r (cos\theta + i sin\theta)$ (correct)
- $z = r (sin\theta + i cos\theta)$
- $z = r (sin\theta - i cos\theta)$
When can two complex numbers be compared in general?
When can two complex numbers be compared in general?
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What is the additive inverse or negative of a complex number $z = a + ib$?
What is the additive inverse or negative of a complex number $z = a + ib$?
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