| 1 |
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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| 2 |
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| 3 |
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| 4 |
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| 5 |
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
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| 6 |
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- A. Reflexive property
- B. Symmetricproperty
- C. Transitiveproperty
- D. Trichotomyproperty
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| 7 |
π, e are: |
- A. integers
- B. natural numbers
- C. rationalnumbers
- D. irrationalnumbers
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| 8 |
The multiplicative invers of a non-zero real number a is: |
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| 9 |
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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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| 10 |
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