Question

Find the 5th term of the sequence in which t1 = 8 and tn = -3tn-1.

Answer 1

8 = 3n - 1
9 = 3n
n = 3\[\sum_{3}^{7} (3n - 1)\]
\[a _{5} = 3n - 1 = 21 - 1 = 20\]

Answer 2

I have one question left:

Find the 6th term of the sequence with t1 = -4 and tn = 5tn-1.

Answer 3

I'm not very sure with this one...sorry.

Answer 4

oh im sorry
i meant this Find the 6th term of the sequence with t1 = -4 and tn = 5^tn-1

Answer 5

the last one is squared

Answer 6

So, \[t _{n} = 5^{n - 1}?\]

Answer 7

yea

Answer 8

I think you should ask someoone else because this involves logs and I'm not good at them.