Sum Of n Terms Of An A.P.|Questions

Introduction|nth term of an AP|Questions|Sum of First n terms of an AP|Questions

Introduction|nth term of an AP|Questions|Sum of First n terms of an AP|Questions

Sum of n Terms of an A.P. | Examples

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 -

If the sum of first n terms of an A.P. is given by S=3n^(2)+4n. Determine the A.P. and the n^(th) term.

The sum of n terms of an A.P.is 3n^(2)-n. Find the first term and common difference of A.P.

The sum of first n terms of an A.P.is 5n-n^(2) . Find the nth term of this A.P.

The sum of first n terms of an A.P. is 3n^2+4n . Find the 25 t h term of this A.P.