| 1 |
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
|
| 2 |
Irrational numbers are: |
- A. terminating decimals
- B. non-terminating decimals
- C. non-terminating, repeating decimals
- D. non-terminating, non repeating
|
| 3 |
Division of a natural number by another natural number gives: |
- A. always a natural number
- B. always an integer
- C. always a rationalnumber
- D. always an irrational number
|
| 4 |
Modulus of 15 i + 20 is: |
- A. 20
- B. 15
- C. 25
- D. none of the above
|
| 5 |
|
- A. a + c = b + d
- B. a + b = c + d
- C. a - b = c - d
- D. None of these
|
| 6 |
|
- A. rational number
- B. irrational number
- C. natural number
- D. whole number
|
| 7 |
Conjugate of complex number (-a, -b) is: |
- A. (-a, b)
- B. (-a, -b)
- C. (a, -b)
- D. none of these
|
| 8 |
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
|
| 9 |
|
- A. rationalnumber
- B. irrationalnumber
- C. naturalnumber
- D. wholenumber
|
| 10 |
Conjugate of a + i b is: |
- A. -a + ib
- B. a + ib
- C. -a - ib
- D. a - ib
|