If the nth term of a sequence is an expressionof first degree in n, show that it is an A.P.

(i) The nth term of a progression is 2n+1. Prove that it is an A. P. Also find its 5th term. (ii) The nth term of a progression is linear expansion in 'n' . Show that it is an A.P. (iii) The nth term of a progression is (n^(2)+1) . Show that it is not an A.P.

The nth term of a sequence is given by a_(n)=2n^(2)+n+1. Show that it is not an A.P.

The nth term of a sequence is given by a_(n)=2n+7 .Show that it is an A.P.Also,find its 7 th term.

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

If nth term of a sequences is 2n+b, wherea,b are constants,is the this sequence an A.P.?

If the nth term of a progression is (4n-10) show that it is an AP. Find its (i) first term, (ii) common difference, and (iii) 16th term.

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

If the nth term of an A.P. is (3-7n), find its 10th term.

If nth term of a sequences is 4n^(2)+1, find the sequence.Is this sequences at A.P.?

The nth term of a progression is 2n+3. Show that it is an A.P. Also find is 10th term.