| 1 | ||
qn−1= | *qn | |
| q |
| √6 | ||
√6n−1= | *√6n | |
| 6 |
| √6 | ||
−108√2= (−√3)* | *(√6}n | |
| 6 |
| −√18 | ||
−108√2= | *(√6)n | |
| 6 |
| −√2 | ||
−108√2= | *(√6)n | |
| 2 |
| −2 | ||
(√6)n=(−108√2)* | ||
| √2 |
| n | |
=3 | |
| 2 |
| 1−qn | ||
Sn=a1* | ||
| 1−q |
| 1−(√6)6 | ||
Sn=(−√3)* | ||
| 1−√6 |
| −215 | ||
Sn=(−√3)* | ||
| 1−√6 |
| 215√3(1+√6) | ||
Sn= | ||
| −5 |
| 215√3+645√2 | ||
Sn= | = −43√3−129√2=−43(√3+3√2) | |
| −5 |
| 1 | ||
108√2=√3* | √6n | |
| √6 |