If `a_(n)` represents the nth term of the sequence `45, 18, 6, …, and a_(1)` represents the first term, then `a_(n)=`

If a_(n) denotes the nth term of the AP 3, 18, 13, 18,… then what is the value of (a_(30)-a_(20))?

The nth term of a sequence is a_(n)=n^(2)+5 . Find its first three terms.

The nth term of a sequence is a_(n)=n^(2)+5 . Find its first three terms.

The nth term of a sequence is a_(n)=2n+3 . Find its first four terms.

The nth term of a sequence is a_(n)=2n+3 . Find its first four terms.

The sum of the first 25 terms of an arithmetic sequence is 1,400, and the 25th term is 104. If the first term of the sequence is a_(1) and the second term is a_(2) , what is the value of a_(2)-a_(1) ?

Write the first five terms of each of the sequences in Questions 1 to 6 whose nth terms are : a_(n)=2^(n)

Find the sum of n terms of the sequence (a_(n)), where a_(n)=5-6n,n in N

If the nth term a_(n) of a sequence is given by a_(n)=n^(2)-n+1 write down its first five terms.

Write the first five terms of each of the sequences in Questions 1 to 6 whose nth terms are : a_(n)=n(n+2)