| 1 |
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
|
| 2 |
If a<sub>n-3</sub> = 2n - 5 then a<sub>n</sub> = |
- A. 2n-1
- B. 2n+1
- C. 2n+3
- D. none
|
| 3 |
An infinite sequence has no: |
- A. nth term
- B. last term
- C. sum
- D. none
|
| 4 |
Fifth term of the sequence 2, 6, 11, 17. |
|
| 5 |
Two A.Ms. between 3 and 9 are: |
- A. 3. 6
- B. 5, 7
- C. 6, 12
- D. 3, 9
|
| 6 |
A geometric series is convergent only if: |
- A. | r | > 1
- B. | r | < 1
- C. | r | = 1
- D. none of these
|
| 7 |
The product of three G.Ms between 1 and 16 is: |
|
| 8 |
The sum of 10 A.Ms between 3 and 47 is: |
- A. 50
- B. 250
- C. 100
- D. 500
|
| 9 |
If a<sub>n</sub> = (n + 1) a<sub>n-1</sub>, a<sub>1</sub> = 1, second term of the sequence is: |
|
| 10 |
G.M between -2i and 8i is: |
- A. 4 or -4
- B. 4i or -4i
- C. 2 or -2
- D. none
|