Find an explicit formula for the nth term of the following sequence. Assume n ≥ 1.?
1, -1/3, 1/9, -1/27, ...
1, -1/3, 1/9, -1/27, ...
alex
(-1/3)^n with n=0 , 1, ...
?
nth term is (-3)^(1 - n) for n = {1, 2, 3, 4, ....}
Steve A
(-1/3)^(n-1)
syl
1/81, -1/243, 1/729,...........
?
a_n = (-1/3)^(n-1)