Home
Class 11
MATHS
If the sum of n terms of an A.P. be 3n^2...

If the sum of `n` terms of an A.P. be `3n^2-n` and its common difference is 6, then its first term is `2` b. `3` c. `1` d. `4`

Promotional Banner

Similar Questions

Explore conceptually related problems

The sum of the n terms of an AP is 2n^2+5n and its common difference is 6, then its first term is

The sum of n terms of an AP is 3n^2+n and its common difference is 6,then find its first term.

The sum of n terms of an AP is 3n^(2)+ nand its common difference is 6, then find its first term.

The sum of the n terms of an AP is 2n^(2)+5n and its common difference is 6, then its first term is

The sum of n terms of an A.P. is (n^(2)+5n). Its common difference is :

The sum of n terms of an A.P. is (n^(2)+5n). Its common difference is :

If the sum of n terms of an A.P. is 3n + 2n^(2) , find the common difference

The sum to n terms of an A.P. is n^(2) . Find the common difference.

If the sum of n terms of an A.P. is S_n=3n^2+5n . Write its common difference.

The sum of n terms of an A.P is n^2 .Find the common difference.