| 1 |
Conjugate of complex number (-a, -b) is: |
- A. (-a, b)
- B. (-a, -b)
- C. (a, -b)
- D. none of these
|
| 2 |
Modulus of 15 i + 20 is: |
- A. 20
- B. 15
- C. 25
- D. none of the above
|
| 3 |
Every real number is also a/an: |
- A. integer
- B. rational number
- C. irrationalnumber
- D. complexnumber
|
| 4 |
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
|
| 5 |
|
- A. integer
- B. rationalnumber
- C. irrationalnumber
- D. naturalnumber
|
| 6 |
The multiplicative invers of a non-zero real number a is: |
|
| 7 |
|
|
| 8 |
|
|
| 9 |
π is defined as: |
- A. ration of diameter of a circle to its circumference
- B. ration of the circumference of a circle to its diameter
- C. ration of area of a circle to its circumference
- D. ration of the circumference of a circle to its area
|
| 10 |
|
- A. Additive property
- B. Multiplicativeproperty
- C. Reflexiveproperty
- D. Transitive property
|