Test SeriesFree PYQsExamsPricing

JEE Main 2013 Mathematics question

MathematicsSequence and SeriesJEE Main 2013

Let be an A.P, such that ; p ≠ q. Then is equal to:

Answer: (3)

Solution

For an A.P., is quadratic in n, so cannot hold for all p ≠ q; taken formally () it would give and $ = =

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-103958