Question

Show that the sequence is geometric.Then find the common ratio and write out the first four terms.

Answer 1

Step 1:

The sequence is .

The first term is .

The  term of the sequence is .

The term of the sequence is .

The common ratio is .

Step 2:

Find the second term by substituting in .

.

Find the third term of the sequence by substituting in .

.

Find the fourth term of the sequence by substituting in .

.

Solution:

The common ratio .

First four terms are and .