| 1 |
Modulus of 15 i + 20 is: |
- A. 20
- B. 15
- C. 25
- D. none of the above
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| 2 |
i<sup>2</sup> + 1 = |
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| 3 |
π, e are: |
- A. integers
- B. natural numbers
- C. rationalnumbers
- D. irrationalnumbers
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| 4 |
The multiplicative identity of real numbers is: |
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| 5 |
|
- A. x = 0
- B. y = 0
- C. x = 0 and y = 0
- D. x = 0 or y = 0
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| 6 |
Which of the following is correct: |
- A. 2 + 7i > 10 + i
- B. 1 + i > 1 - i
- C. 4 + 3i > 1 + 3i
- D. none of these
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| 7 |
|
- A. integer
- B. rational number
- C. irrational number
- D. natural number
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| 8 |
Zero is: |
- A. a natural number
- B. a whole number
- C. a positive integer
- D. a negativeinteger
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| 9 |
Conjugate of a + i b is: |
- A. -a + ib
- B. a + ib
- C. -a - ib
- D. a - ib
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| 10 |
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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