Q. {c(1)=56c(n)=c(n−1)⋅21What is the 4th term in the sequence?
Sequence Definition: Understand the sequence definition.The sequence is defined recursively, with the first term c(1) given as 56 and each subsequent term c(n) being half of the previous term c(n−1). This is a geometric sequence with a common ratio of 21.
Calculate Second Term: Calculate the second term using the recursive formula.To find the second term, we use the first term and multiply it by the common ratio.c(2)=c(1)×(21)=56×(21)=28
Calculate Third Term: Calculate the third term using the recursive formula.To find the third term, we use the second term and multiply it by the common ratio.c(3)=c(2)×(21)=28×(21)=14
Calculate Fourth Term: Calculate the fourth term using the recursive formula.To find the fourth term, we use the third term and multiply it by the common ratio.c(4)=c(3)×(21)=14×(21)=7