ai |
= |
(-1)i+1 | n | for all integers i  0, |
| i + 3 |
1. Substitute the values i = 0, 1, 2 and 3 into the general formula:
ai |
= |
(-1)i+1 | n | for all integers i 0, |
| i + 3 |
a0 |
= |
(-1)0+1 | n | = |
- n |
| 0 + 3 | 3 |
a1 |
= |
(-1)1+1 | n | = |
n |
| 1 + 3 | 4 |
a2 |
= |
(-1)2+1 | n | = |
- n |
| 2 + 3 | 5 |
a3 |
= |
(-1)3+1 | n | = |
n |
| 3 + 3 | 6 |