Question

Find the 13Th term of geometric sequence 1,2,4,

Answer 1

a₁₃ = 4096

Explanation:

The n th term of a geometric sequence is

`a_(n)` = a₁
`(r)^(n-1)`

where a₁ is the first term and r the common ratio

Here a₁ = 1 and r =
`(a_(2) )/(a_(1) )` =
`(2)/(1)` = 2 , then

a₁₃ = 1 ×
`2^(12)` = 4096