Q) In an AP, the sum of the first n terms is given by Sn = 6n – n2. Find its 30th term. Ans: We know that, the formula for the sum of the first n terms of an arithmetic progression (AP) is given by: Sn = [2a + (n-1) d] where: Sn is […]
In an AP, the sum of the first n terms is given by Sn = 6n – n2. Find its 30th term. Read More »