Test SeriesFree PYQsExamsPricing

JEE Advanced Mathematics question

MathematicsSequence and SeriesJEE Advanced

If are nonzero real numbers such that

+ + + + (ab + bc +

then are in

Answer: (B)

Solution

By Lagrange's identity,

+ + + + - (ab + bc + = (ac - + (ad - + (bd - \ 0.

The given condition says this is , so each

See the full step-by-step solution

Create a free account to read the complete working (5 steps), and practise questions like this in a timed test.

Create a free account

Question ID VK-107768