Advertisements
Advertisements
Question
Find the first four terms of the sequence whose nth terms are given by an = n3 – 2
Advertisements
Solution
tn = an = n3 – 2
a1 = 13 – 2 = 1 – 2 = – 1
a2 = 23 – 2 = 8 – 2 = 6
a3 = 33 – 2 = 27 – 2 = 25
a4 = 43 – 2 = 64 – 2 = 62
∴ The first four terms are – 1, 6, 25, 62, ……….
APPEARS IN
RELATED QUESTIONS
Find the next three terms of the following sequence.
8, 24, 72, …
Find the next three terms of the following sequence.
5, 1, – 3, …
Find the next three terms of the following sequence
`1/4, 2/9, 3/16, ...`
Find the first four terms of the sequence whose nth terms are given by an = (–1)n+1 n(n + 1)
Find the first four terms of the sequences whose nth terms are given by an = 2n2 – 6
Find the nth term of the following sequence
3, 8, 13, 18, ...
Find the indicated terms of the sequences whose nth terms are given by
an = `(5"n")/("n" + 2)`; a6 and a13
Find the indicated terms of the sequences whose nth terms are given by
an = – (n2 – 4); a4 and a11
Given F1 = 1, F2 = 3 and Fn = Fn–1 + Fn–2 then F5 is
The next term of the sequence `3/16, 1/8, 1/12, 1/18, ...` is
