If the sum of first terms of an A.P. is and If be the first term of the A.P. then the sum of next terms is
Explanation for the correct option.
Step 1: Solve for the common difference .
Given: First term of A.P. , sum of first terms is .
We know that sum of first terms of A.P. is given by,
Step 2: Solve for the required sum.
Let is the sum of next terms of A.P.
So, the sum of next terms of A.P. is .
Hence option(C) is the correct option.