The Fibonacci sequence is defined by
Find , for n = 1, 2, 3, 4, 5.
The Fibonacci sequence is given by
and
Putting n =3 in (i), we get
Putting n = 4 in (i), we get
Putting n = 5 in (i), we get
Putting n = 6 in (i), we get
Now, let
Write the first five terms of each of the sequences whose nth terms are :
Here
Putting n = 1, 2, 3, 4, 5, we get
∴ First five terms are
Write first five terms of the following sequence and obtain the corresponding series. for all n>1
Here,
Now, ...(i) (for n>1)
Putting n = 2 in (i), we get
Putting n = 3 in (i), we get
Putting n =4 in (i), we get
Putting n = 5 in (i), we get
The corresponding series is : 3 + 11 + 35 + 107 + 323 + ..........
Write the first five terms of the sequence whose nth terms are:
Here,
Putting n = 1, 2, 3, 4, 5, we get
∴ First five terms are: 25, -125, 625, -3125, 15625