Find the first 5 terms of the sequence, defined by
a1 = –1, an = 
for n ≥ 2.
To Find: First five terms of a given sequence.
Condition: n ≥ 2
Given: a1 = –1, an = 
for n ≥ 2
Put n= 2 in nth term (i.e. an), we have
a2 = 
(as a1 = –1 )
Put n= 3 in nth term (i.e. an), we have
a3 = 
(as a2 = 
)
Put n= 4 in nth term (i.e. an), we have
a4 = 
(as a3 = 
)
Put n= 5 in nth term (i.e. an), we have
a5 = 
(as a3 = 
)
First five terms of a given sequence are –1, 
, 
, 
, 
1