Question

A geometric sequence has first term a = 900 and common ratio r = 3. Findthe 5th term of the sequence.

Answer 1

A geometric sequence with the following details given;

Given:

`\begin{gathered} a=900 \\ r=3 \\ n=5 \\ U_5=? \end{gathered}`

The nth term of a geometric sequence is given by;

`U_n=ar^(n-1)`

Substituting the given values in the formula, we have;