Question
Which formula can be used to find any term, n, of the sequence 1,-(2)/(3),(4)/(9) , __ 7 a_(n)=(-(2)/(3))^n-1 a_(n)=-(2)/(3)cdot 1^n-1 a_(n)=-(2)/(3)cdot (n-1) a_(n)=-((2)/(3))^n-1
Solution
4.2
(310 Votos)
Pablo
Elite · Tutor por 8 anos
Resposta
To find the formula for the the sequence
, we need to identify the pattern in the sequence.Looking at the sequence, we can see that each term is obtained by multiplying the previous term by
. Therefore, the formula for the nth term of the sequence is:
This formula correctly generates the first three terms of the sequence:- For n=1,
- For n=2,
- For n=3,
Therefore, the correct formula for finding any term, n, of the sequence is
.