| 1 |
A sequence is denoted by: |
- A.
- B. {a<sub>n</sub>}
- C. a<sub>n</sub>
- D. a<sub>1</sub> + (n-1) d
|
| 2 |
A.M between x - 3 & x + 5 is __________: |
- A. x + 1
- B. x - 1
- C. 2x + 2
- D. none
|
| 3 |
Two A.Ms. between 3 and 9 are: |
- A. 3. 6
- B. 5, 7
- C. 6, 12
- D. 3, 9
|
| 4 |
What is the next term in the sequence 10, 7, 4, 1...........? |
- A. 2
- B. -2
- C. -3
- D. none of these
|
| 5 |
If a<sub>n-1</sub> = 2n - 3 then a<sub>n+1</sub> = |
- A. 2n - 1
- B. 2n + 1
- C. 2n + 3
- D. none
|
| 6 |
A.M between 1 + x - x<sup>2</sup> and 1 + x + x<sup>2</sup> is: |
- A. 1 + x<sup>2</sup>
- B. 1 + x
- C. 2
- D. none
|
| 7 |
Domain of finite sequence is: |
- A. set of natural numbers
- B. subset of N
- C. R
- D. none
|
| 8 |
The sum of 10 A.Ms between 3 and 47 is: |
- A. 50
- B. 250
- C. 100
- D. 500
|
| 9 |
What is the general term of the geometric sequence -1, 1, -1, 1 ....... ? |
- A. (-1)<sup>n</sup>
- B. (1)<sup>n</sup>
- C. (-1)<sup>n-1</sup>
- D. none of these
|
| 10 |
Arithmetic series is only possible if: |
- A. |d| = 1
- B. |d| < 1
- C. |d| > 1
- D. none
|