| 1 |
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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| 2 |
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- A. integer
- B. rationalnumber
- C. irrationalnumber
- D. naturalnumber
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| 3 |
The identity element with respect to addition is: |
- A. 0
- B. 1
- C. -1
- D. 0 and 1
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| 4 |
The real part of the complex number a + bi is: |
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| 5 |
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- A. rational number
- B. irrational number
- C. natural number
- D. whole number
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| 6 |
π, e are: |
- A. integers
- B. natural numbers
- C. rationalnumbers
- D. irrationalnumbers
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| 7 |
Conjugate of a + i b is: |
- A. -a + ib
- B. a + ib
- C. -a - ib
- D. a - ib
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| 8 |
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- A. closure property w.r.t multiplication
- B. commutativeproperty w.r.t multiplication
- C. associativeproperty w.r.t multiplication
- D. trichotomy property
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| 9 |
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- A. real numbers
- B. complexnumbers
- C. primenumbers
- D. oddnumbers
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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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