| 1 |
The real part of the complex number a + bi is: |
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| 2 |
If z = x + i y = r (cos Θ + i sin Θ), then arg z is: |
- A. tan Θ
- B. cos<sup>2</sup>Θ + sin<sup>2</sup>Θ
- C. r
- D. Θ
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| 3 |
The ordered pairs (2, 5) and (5, 2) are: |
- A. not equal
- B. equal
- C. disjoint
- D. empty
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| 4 |
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- A. x = 0
- B. y = 0
- C. x = 0 and y = 0
- D. x = 0 or y = 0
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| 5 |
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- A.
- B. archimedean property
- C. transitive property
- D. multiplicative property
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| 6 |
The set of all rational numbers between 2, 3 is: |
- A. an empty set
- B. an infinite set
- C. a finite set
- D. a power set
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| 7 |
Conjugate of a- i b is: |
- A. b + ia
- B. -a + ib
- C. -a - ib
- D. a + ib
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| 8 |
The imaginary part of the complex number a + bi is: |
- A. a
- B. b
- C. bi
- D. none of these
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| 9 |
If z<sub>1</sub> = 4i and z<sub>2</sub> = 3 - 9i, then z<sub>1</sub> + z<sub>2</sub> = |
- A. 3 - 5i
- B. 3i - 5
- C. 7 - 9i
- D. 3 + 5i
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| 10 |
Conjugate of complex number (-a, -b) is: |
- A. (-a, b)
- B. (-a, -b)
- C. (a, -b)
- D. none of these
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