| 1 |
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
|
| 2 |
|
- A. right angled
- B. equilateral
- C. isosceles
- D. obtuse angled
|
| 3 |
G.M between -2i and 8i is: |
- A. 4 or -4
- B. 4i or -4i
- C. 2 or -2
- D. none
|
| 4 |
|
|
| 5 |
A matrix of order m×1 is called: |
- A. row matrix
- B. column matrix
- C. identity matrix
- D. scalar matrix
|
| 6 |
The real part of the complex number a + bi is: |
|
| 7 |
A dice is thrown. The probability to get an odd number is; |
- A. 1
- B.
- C.
- D. none of these
|
| 8 |
A set can be described by: |
- A. one way
- B. two ways
- C. several ways
- D. threeways
|
| 9 |
|
- A. equal sets
- B. null sets
- C. overlapping sets
- D. subsets
|
| 10 |
If triangle ABC, If ß = 90° then: |
- A.
- B.
- C.
- D. none of these
|
