| 1 |
Factors of x<sup>2</sup> + y<sup>2</sup> are: |
- A. (x + iy) (x - iy)
- B. (x + y) (x - y)
- C. (x + y) (x + y)
- D. none
|
| 2 |
The multiplicative invers of a non-zero real number a is: |
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| 3 |
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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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| 4 |
Conjugate of complex number (-a, -b) is: |
- A. (-a, b)
- B. (-a, -b)
- C. (a, -b)
- D. none of these
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| 5 |
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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| 6 |
i<sup>2</sup> + 1 = |
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| 7 |
The multiplicative identity of real numbers is: |
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| 8 |
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- A. a + c = b + d
- B. a + b = c + d
- C. a - b = c - d
- D. None of these
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| 9 |
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- A. integer
- B. rational number
- C. irrational number
- D. natural number
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| 10 |
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- A. real numbers
- B. complexnumbers
- C. primenumbers
- D. oddnumbers
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