List the first four terms of a geometric sequence with t1 = 4 and tn = -3tn-1.

How do I find r???

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- July 19th 2013, 07:42 AMdzomberggeometric sequence help
List the first four terms of a geometric sequence with t1 = 4 and tn = -3tn-1.

How do I find r??? - July 19th 2013, 08:05 AMPlatoRe: geometric sequence help
- July 19th 2013, 08:05 AMSorobanRe: geometric sequence help
Hello, dzomberg!

Quote:

List the first four terms of a geometric sequence with:-

How do I find ?

Justwhat you are given . . . and crank out the list.*read*

. . . The first term is 4.

. . . Each term is -3 times the preceding term.

Therefore:

. .

- July 19th 2013, 10:05 AMtopsquarkRe: geometric sequence help
....And please learn to use LaTeX (as in our LaTeX help forum) or learn how to use parenthesis. tn = -3t(n-1) is a bit better anyway. t_n = -3t_(n - 1) would be best.

-Dan