Progression (Sequence and Series)Hard
Question
If the sum of n terms of an AP is 2n2 + 5n, then its nth term is-
Options
A.4n-3
B.4n + 3
C.3n + 4
D.3n − 4
More Progression (Sequence and Series) Questions
If the roots of the equation (b − c) x2 + (c − a)x + (a − b) = 0 are equal , then a, b, c will be in-...Three numbers are in A.P., If their sum is 33 and their product is 792, then the smallest of these numbers is -...If p, q, r in harmonic progression and p & r be different having same sign then the roots of the equation px2 + qx + r =...If the sum of the roots of the quadratic equation ax2 + bx + c = 0 is equal to the sum of the squares of their reciproca...Let the sequence a1, a2, a3, ......, an form an A.P., then a12 − a22 + a32 − a42 + ...... + a2n−12 ...