write down the fifth term and the general term of
following sequence : 8,4,2,...

The terms listed are 8, 4, and 2 in that order. From what we can see, it is a geometric sequence whose next term is gotten by dividing the previous term by 2. The formula for finding the nth term of a geometric sequence is given as [tex]ar^{n-1}[/tex], where
a = first term which is 8
r = common ratio, 1/2 or 0.5
n = is the term we're looking for, 5
Putting all these together into one solid equation, we have
8 * [tex]0.5^{5-1}[/tex] =
8 * [tex]0.5^{4}[/tex] =
8 * 0.0625 = 0.5
Therefore, the 5th term of the sequence is 0.5. Similar example can be seen here https://brainly.com/question/9300199