If `(a)/(2)` is the first term and d is the common difference of an AP, then the sum of n terms of the AP is _______.

If a is the first term and d is the common difference of an AP, then the (n+1) th term of the AP is _____.

If 'a' is the first term and 'd is the common difference of an AP, then the nth term of the AP, a_n = ……………….

If a and d are the first term and common difference of an A.P. then the 8^(th) term is …..

Given sum of the first n terms of an A.P is 2n+ 3n^(2) . Another A.P is formed with the same first term and is double the common difference, the sum of n terms of the new A.P. is

In an A.P., if the first term is 22, the common difference is -4 and the sum to n terms is 64, find n .

In an A.P., if the first term is 22, the common difference is -4 and the sum to n terms is 64, find n .

Given sum of the first n terms of an A.P. is 2n+3n^(2) Another A.P .is formed with the same first.term and double of the common difference,the sum of n terms of the new A.P. is -

Given sum of the first nterms of an A.P. is 2n+3n^(2) .Another A.P. is formed with the same first term and double of the common difference,the sum of n terms of the new A.P.is:

The first term and common difference of an A.P. are respectively 4 and 2. If the sum up to n terms is 88, find n.

The sum of the first n terms of an AP whose first term is 8 and the common difference is 20, is equal to the sum of first 2n terms of another AP whose first terms is -30 and the common difference is 8. find n